diff --git a/lib/coffee-script/browser.js b/lib/coffee-script/browser.js
index cb5e501d98..c471d4ee9a 100644
--- a/lib/coffee-script/browser.js
+++ b/lib/coffee-script/browser.js
@@ -6,7 +6,7 @@
 
   CoffeeScript.require = require;
 
-  CoffeeScript.eval = function(code, options) {
+  CoffeeScript["eval"] = function(code, options) {
     return eval(CoffeeScript.compile(code, options));
   };
 
diff --git a/lib/coffee-script/cake.js b/lib/coffee-script/cake.js
index e7cb2a1dd3..8e8d9a0d42 100644
--- a/lib/coffee-script/cake.js
+++ b/lib/coffee-script/cake.js
@@ -56,7 +56,7 @@
     } catch (e) {
       return fatalError("" + e);
     }
-    _ref = options.arguments;
+    _ref = options["arguments"];
     _results = [];
     for (_i = 0, _len = _ref.length; _i < _len; _i++) {
       arg = _ref[_i];
diff --git a/lib/coffee-script/coffee-script.js b/lib/coffee-script/coffee-script.js
index 7907251350..fd676ba47f 100644
--- a/lib/coffee-script/coffee-script.js
+++ b/lib/coffee-script/coffee-script.js
@@ -76,7 +76,7 @@
     }
   };
 
-  exports.eval = function(code, options) {
+  exports["eval"] = function(code, options) {
     var Module, Script, js, k, o, r, sandbox, v, _i, _len, _module, _ref2, _ref3, _require;
     if (options == null) options = {};
     if (!(code = code.trim())) return;
diff --git a/lib/coffee-script/command.js b/lib/coffee-script/command.js
index b7dc1b9815..b47fabe63a 100644
--- a/lib/coffee-script/command.js
+++ b/lib/coffee-script/command.js
@@ -54,7 +54,7 @@
       return printWarn("The --watch feature depends on Node v0.6.0+. You are running " + process.version + ".");
     }
     if (opts.stdio) return compileStdio();
-    if (opts.eval) return compileScript(null, sources[0]);
+    if (opts["eval"]) return compileScript(null, sources[0]);
     if (!sources.length) return require('./repl');
     if (opts.run) opts.literals = sources.splice(1).concat(opts.literals);
     process.argv = process.argv.slice(0, 2).concat(opts.literals);
@@ -396,8 +396,8 @@
     o = opts = optionParser.parse(process.argv.slice(2));
     o.compile || (o.compile = !!o.output);
     o.run = !(o.compile || o.print || o.lint);
-    o.print = !!(o.print || (o.eval || o.stdio && o.compile));
-    sources = o.arguments;
+    o.print = !!(o.print || (o["eval"] || o.stdio && o.compile));
+    sources = o["arguments"];
     for (i = _i = 0, _len = sources.length; _i < _len; i = ++_i) {
       source = sources[i];
       sourceCode[i] = null;
diff --git a/lib/coffee-script/lexer.js b/lib/coffee-script/lexer.js
index 0f7904c0a8..e2503c9a8b 100644
--- a/lib/coffee-script/lexer.js
+++ b/lib/coffee-script/lexer.js
@@ -1,6 +1,6 @@
 // Generated by CoffeeScript 1.2.1-pre
 (function() {
-  var BOOL, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_ALIAS_MAP, COFFEE_KEYWORDS, COMMENT, COMPARE, COMPOUND_ASSIGN, HEREDOC, HEREDOC_ILLEGAL, HEREDOC_INDENT, HEREGEX, HEREGEX_OMIT, IDENTIFIER, INDEXABLE, INVERSES, JSTOKEN, JS_FORBIDDEN, JS_KEYWORDS, LINE_BREAK, LINE_CONTINUER, LOGIC, Lexer, MATH, MULTILINER, MULTI_DENT, NOT_REGEX, NOT_SPACED_REGEX, NUMBER, OPERATOR, REGEX, RELATION, RESERVED, Rewriter, SHIFT, SIMPLESTR, TRAILING_SPACES, UNARY, WHITESPACE, compact, count, key, last, starts, _ref, _ref2,
+  var BOOL, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_ALIAS_MAP, COFFEE_KEYWORDS, COMMENT, COMPARE, COMPOUND_ASSIGN, HEREDOC, HEREDOC_ILLEGAL, HEREDOC_INDENT, HEREGEX, HEREGEX_OMIT, IDENTIFIER, INDEXABLE, INVERSES, JSTOKEN, JS_FORBIDDEN, JS_KEYWORDS, LINE_BREAK, LINE_CONTINUER, LOGIC, Lexer, MATH, MULTILINER, MULTI_DENT, NOT_REGEX, NOT_SPACED_REGEX, NUMBER, OPERATOR, REGEX, RELATION, RESERVED, Rewriter, SHIFT, SIMPLESTR, STRICT_PROSCRIBED, TRAILING_SPACES, UNARY, WHITESPACE, compact, count, key, last, starts, _ref, _ref2,
     __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
   _ref = require('./rewriter'), Rewriter = _ref.Rewriter, INVERSES = _ref.INVERSES;
@@ -69,7 +69,7 @@
           }
         }
       }
-      if (__indexOf.call(['eval', 'arguments'].concat(JS_FORBIDDEN), id) >= 0) {
+      if (__indexOf.call(JS_FORBIDDEN, id) >= 0) {
         if (forcedIdentifier) {
           tag = 'IDENTIFIER';
           id = new String(id);
@@ -129,7 +129,7 @@
     };
 
     Lexer.prototype.stringToken = function() {
-      var match, string;
+      var match, octalEsc, string;
       switch (this.chunk.charAt(0)) {
         case "'":
           if (!(match = SIMPLESTR.exec(this.chunk))) return 0;
@@ -146,6 +146,9 @@
         default:
           return 0;
       }
+      if (octalEsc = /^(?:\\.|[^\\])*\\[0-7]/.test(string)) {
+        this.error("octal escape sequences " + string + " are not allowed");
+      }
       this.line += count(string, '\n');
       return string.length;
     };
@@ -630,11 +633,15 @@
 
   COFFEE_KEYWORDS = COFFEE_KEYWORDS.concat(COFFEE_ALIASES);
 
-  RESERVED = ['case', 'default', 'function', 'var', 'void', 'with', 'const', 'let', 'enum', 'export', 'import', 'native', '__hasProp', '__extends', '__slice', '__bind', '__indexOf'];
+  RESERVED = ['case', 'default', 'function', 'var', 'void', 'with', 'const', 'let', 'enum', 'export', 'import', 'native', '__hasProp', '__extends', '__slice', '__bind', '__indexOf', 'implements', 'interface', 'let', 'package', 'private', 'protected', 'public', 'static', 'yield'];
+
+  STRICT_PROSCRIBED = ['arguments', 'eval'];
+
+  JS_FORBIDDEN = JS_KEYWORDS.concat(RESERVED).concat(STRICT_PROSCRIBED);
 
-  JS_FORBIDDEN = JS_KEYWORDS.concat(RESERVED);
+  exports.RESERVED = RESERVED.concat(JS_KEYWORDS).concat(COFFEE_KEYWORDS).concat(STRICT_PROSCRIBED);
 
-  exports.RESERVED = RESERVED.concat(JS_KEYWORDS).concat(COFFEE_KEYWORDS);
+  exports.STRICT_PROSCRIBED = STRICT_PROSCRIBED;
 
   IDENTIFIER = /^([$A-Za-z_\x7f-\uffff][$\w\x7f-\uffff]*)([^\n\S]*:(?!:))?/;
 
diff --git a/lib/coffee-script/nodes.js b/lib/coffee-script/nodes.js
index ae4beffea4..b992b52c83 100644
--- a/lib/coffee-script/nodes.js
+++ b/lib/coffee-script/nodes.js
@@ -1,15 +1,15 @@
 // Generated by CoffeeScript 1.2.1-pre
 (function() {
-  var Access, Arr, Assign, Base, Block, Call, Class, Closure, Code, Comment, Existence, Extends, For, IDENTIFIER, IDENTIFIER_STR, IS_STRING, If, In, Index, LEVEL_ACCESS, LEVEL_COND, LEVEL_LIST, LEVEL_OP, LEVEL_PAREN, LEVEL_TOP, Literal, METHOD_DEF, NEGATE, NO, Obj, Op, Param, Parens, RESERVED, Range, Return, SIMPLENUM, Scope, Slice, Splat, Switch, TAB, THIS, Throw, Try, UTILITIES, Value, While, YES, compact, del, ends, extend, flatten, last, merge, multident, starts, unfoldSoak, utility, _ref,
+  var Access, Arr, Assign, Base, Block, Call, Class, Closure, Code, Comment, Existence, Extends, For, IDENTIFIER, IDENTIFIER_STR, IS_STRING, If, In, Index, LEVEL_ACCESS, LEVEL_COND, LEVEL_LIST, LEVEL_OP, LEVEL_PAREN, LEVEL_TOP, Literal, METHOD_DEF, NEGATE, NO, Obj, Op, Param, Parens, RESERVED, Range, Return, SIMPLENUM, STRICT_PROSCRIBED, Scope, Slice, Splat, Switch, TAB, THIS, Throw, Try, UTILITIES, Value, While, YES, compact, del, ends, extend, flatten, last, merge, multident, starts, unfoldSoak, utility, _ref, _ref2,
     __hasProp = {}.hasOwnProperty,
     __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; },
     __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
   Scope = require('./scope').Scope;
 
-  RESERVED = require('./lexer').RESERVED;
+  _ref = require('./lexer'), RESERVED = _ref.RESERVED, STRICT_PROSCRIBED = _ref.STRICT_PROSCRIBED;
 
-  _ref = require('./helpers'), compact = _ref.compact, flatten = _ref.flatten, extend = _ref.extend, merge = _ref.merge, del = _ref.del, starts = _ref.starts, ends = _ref.ends, last = _ref.last;
+  _ref2 = require('./helpers'), compact = _ref2.compact, flatten = _ref2.flatten, extend = _ref2.extend, merge = _ref2.merge, del = _ref2.del, starts = _ref2.starts, ends = _ref2.ends, last = _ref2.last;
 
   exports.extend = extend;
 
@@ -132,15 +132,15 @@
     };
 
     Base.prototype.eachChild = function(func) {
-      var attr, child, _i, _j, _len, _len2, _ref2, _ref3;
+      var attr, child, _i, _j, _len, _len2, _ref3, _ref4;
       if (!this.children) return this;
-      _ref2 = this.children;
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        attr = _ref2[_i];
+      _ref3 = this.children;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        attr = _ref3[_i];
         if (this[attr]) {
-          _ref3 = flatten([this[attr]]);
-          for (_j = 0, _len2 = _ref3.length; _j < _len2; _j++) {
-            child = _ref3[_j];
+          _ref4 = flatten([this[attr]]);
+          for (_j = 0, _len2 = _ref4.length; _j < _len2; _j++) {
+            child = _ref4[_j];
             if (func(child) === false) return this;
           }
         }
@@ -229,20 +229,20 @@
     };
 
     Block.prototype.isStatement = function(o) {
-      var exp, _i, _len, _ref2;
-      _ref2 = this.expressions;
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        exp = _ref2[_i];
+      var exp, _i, _len, _ref3;
+      _ref3 = this.expressions;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        exp = _ref3[_i];
         if (exp.isStatement(o)) return true;
       }
       return false;
     };
 
     Block.prototype.jumps = function(o) {
-      var exp, _i, _len, _ref2;
-      _ref2 = this.expressions;
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        exp = _ref2[_i];
+      var exp, _i, _len, _ref3;
+      _ref3 = this.expressions;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        exp = _ref3[_i];
         if (exp.jumps(o)) return exp;
       }
     };
@@ -273,13 +273,13 @@
     };
 
     Block.prototype.compileNode = function(o) {
-      var code, codes, node, top, _i, _len, _ref2;
+      var code, codes, node, top, _i, _len, _ref3;
       this.tab = o.indent;
       top = o.level === LEVEL_TOP;
       codes = [];
-      _ref2 = this.expressions;
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        node = _ref2[_i];
+      _ref3 = this.expressions;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        node = _ref3[_i];
         node = node.unwrapAll();
         node = node.unfoldSoak(o) || node;
         if (node instanceof Block) {
@@ -320,11 +320,11 @@
       prelude = "";
       if (!o.bare) {
         preludeExps = (function() {
-          var _i, _len, _ref2, _results;
-          _ref2 = this.expressions;
+          var _i, _len, _ref3, _results;
+          _ref3 = this.expressions;
           _results = [];
-          for (i = _i = 0, _len = _ref2.length; _i < _len; i = ++_i) {
-            exp = _ref2[i];
+          for (i = _i = 0, _len = _ref3.length; _i < _len; i = ++_i) {
+            exp = _ref3[i];
             if (!(exp.unwrap() instanceof Comment)) break;
             _results.push(exp);
           }
@@ -345,11 +345,11 @@
     };
 
     Block.prototype.compileWithDeclarations = function(o) {
-      var assigns, code, declars, exp, i, post, rest, scope, spaced, _i, _len, _ref2, _ref3, _ref4;
+      var assigns, code, declars, exp, i, post, rest, scope, spaced, _i, _len, _ref3, _ref4, _ref5;
       code = post = '';
-      _ref2 = this.expressions;
-      for (i = _i = 0, _len = _ref2.length; _i < _len; i = ++_i) {
-        exp = _ref2[i];
+      _ref3 = this.expressions;
+      for (i = _i = 0, _len = _ref3.length; _i < _len; i = ++_i) {
+        exp = _ref3[i];
         exp = exp.unwrap();
         if (!(exp instanceof Comment || exp instanceof Literal)) break;
       }
@@ -358,8 +358,8 @@
       });
       if (i) {
         rest = this.expressions.splice(i, 9e9);
-        _ref3 = [this.spaced, false], spaced = _ref3[0], this.spaced = _ref3[1];
-        _ref4 = [this.compileNode(o), spaced], code = _ref4[0], this.spaced = _ref4[1];
+        _ref4 = [this.spaced, false], spaced = _ref4[0], this.spaced = _ref4[1];
+        _ref5 = [this.compileNode(o), spaced], code = _ref5[0], this.spaced = _ref5[1];
         this.expressions = rest;
       }
       post = this.compileNode(o);
@@ -413,8 +413,8 @@
     };
 
     Literal.prototype.isStatement = function() {
-      var _ref2;
-      return (_ref2 = this.value) === 'break' || _ref2 === 'continue' || _ref2 === 'debugger';
+      var _ref3;
+      return (_ref3 = this.value) === 'break' || _ref3 === 'continue' || _ref3 === 'debugger';
     };
 
     Literal.prototype.isComplex = NO;
@@ -431,8 +431,8 @@
     };
 
     Literal.prototype.compileNode = function(o) {
-      var code, _ref2, _ref3;
-      code = this.isUndefined ? o.level >= LEVEL_ACCESS ? '(void 0)' : 'void 0' : this.value === 'this' ? ((_ref2 = o.scope.method) != null ? _ref2.bound : void 0) ? o.scope.method.context : this.value : this.value.reserved && ((_ref3 = "" + this.value) !== 'eval' && _ref3 !== 'arguments') ? "\"" + this.value + "\"" : this.value;
+      var code, _ref3;
+      code = this.isUndefined ? o.level >= LEVEL_ACCESS ? '(void 0)' : 'void 0' : this.value === 'this' ? ((_ref3 = o.scope.method) != null ? _ref3.bound : void 0) ? o.scope.method.context : this.value : this.value.reserved ? "\"" + this.value + "\"" : this.value;
       if (this.isStatement()) {
         return "" + this.tab + code + ";";
       } else {
@@ -467,8 +467,8 @@
     Return.prototype.jumps = THIS;
 
     Return.prototype.compile = function(o, level) {
-      var expr, _ref2;
-      expr = (_ref2 = this.expression) != null ? _ref2.makeReturn() : void 0;
+      var expr, _ref3;
+      expr = (_ref3 = this.expression) != null ? _ref3.makeReturn() : void 0;
       if (expr && !(expr instanceof Return)) {
         return expr.compile(o, level);
       } else {
@@ -530,10 +530,10 @@
     };
 
     Value.prototype.isAtomic = function() {
-      var node, _i, _len, _ref2;
-      _ref2 = this.properties.concat(this.base);
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        node = _ref2[_i];
+      var node, _i, _len, _ref3;
+      _ref3 = this.properties.concat(this.base);
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        node = _ref3[_i];
         if (node.soak || node instanceof Call) return false;
       }
       return true;
@@ -608,14 +608,14 @@
         _this = this;
       if (this.unfoldedSoak != null) return this.unfoldedSoak;
       result = (function() {
-        var fst, i, ifn, prop, ref, snd, _i, _len, _ref2;
+        var fst, i, ifn, prop, ref, snd, _i, _len, _ref3;
         if (ifn = _this.base.unfoldSoak(o)) {
           Array.prototype.push.apply(ifn.body.properties, _this.properties);
           return ifn;
         }
-        _ref2 = _this.properties;
-        for (i = _i = 0, _len = _ref2.length; _i < _len; i = ++_i) {
-          prop = _ref2[i];
+        _ref3 = _this.properties;
+        for (i = _i = 0, _len = _ref3.length; _i < _len; i = ++_i) {
+          prop = _ref3[i];
           if (!prop.soak) continue;
           prop.soak = false;
           fst = new Value(_this.base, _this.properties.slice(0, i));
@@ -680,8 +680,8 @@
     Call.prototype.children = ['variable', 'args'];
 
     Call.prototype.newInstance = function() {
-      var base, _ref2;
-      base = ((_ref2 = this.variable) != null ? _ref2.base : void 0) || this.variable;
+      var base, _ref3;
+      base = ((_ref3 = this.variable) != null ? _ref3.base : void 0) || this.variable;
       if (base instanceof Call && !base.isNew) {
         base.newInstance();
       } else {
@@ -700,7 +700,9 @@
       }
       if (method.klass) {
         accesses = [new Access(new Literal('__super__'))];
-        if (method.static) accesses.push(new Access(new Literal('constructor')));
+        if (method["static"]) {
+          accesses.push(new Access(new Literal('constructor')));
+        }
         accesses.push(new Access(new Literal(name)));
         return (new Value(new Literal(method.klass), accesses)).compile(o);
       } else {
@@ -709,11 +711,11 @@
     };
 
     Call.prototype.unfoldSoak = function(o) {
-      var call, ifn, left, list, rite, _i, _len, _ref2, _ref3;
+      var call, ifn, left, list, rite, _i, _len, _ref3, _ref4;
       if (this.soak) {
         if (this.variable) {
           if (ifn = unfoldSoak(o, this, 'variable')) return ifn;
-          _ref2 = new Value(this.variable).cacheReference(o), left = _ref2[0], rite = _ref2[1];
+          _ref3 = new Value(this.variable).cacheReference(o), left = _ref3[0], rite = _ref3[1];
         } else {
           left = new Literal(this.superReference(o));
           rite = new Value(left);
@@ -737,9 +739,9 @@
         list.push(call);
         if (!((call = call.variable.base) instanceof Call)) break;
       }
-      _ref3 = list.reverse();
-      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
-        call = _ref3[_i];
+      _ref4 = list.reverse();
+      for (_i = 0, _len = _ref4.length; _i < _len; _i++) {
+        call = _ref4[_i];
         if (ifn) {
           if (call.variable instanceof Call) {
             call.variable = ifn;
@@ -753,7 +755,7 @@
     };
 
     Call.prototype.filterImplicitObjects = function(list) {
-      var node, nodes, obj, prop, properties, _i, _j, _len, _len2, _ref2;
+      var node, nodes, obj, prop, properties, _i, _j, _len, _len2, _ref3;
       nodes = [];
       for (_i = 0, _len = list.length; _i < _len; _i++) {
         node = list[_i];
@@ -762,9 +764,9 @@
           continue;
         }
         obj = null;
-        _ref2 = node.base.properties;
-        for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) {
-          prop = _ref2[_j];
+        _ref3 = node.base.properties;
+        for (_j = 0, _len2 = _ref3.length; _j < _len2; _j++) {
+          prop = _ref3[_j];
           if (prop instanceof Assign || prop instanceof Comment) {
             if (!obj) nodes.push(obj = new Obj(properties = [], true));
             properties.push(prop);
@@ -778,8 +780,8 @@
     };
 
     Call.prototype.compileNode = function(o) {
-      var arg, args, code, _ref2;
-      if ((_ref2 = this.variable) != null) _ref2.front = this.front;
+      var arg, args, code, _ref3;
+      if ((_ref3 = this.variable) != null) _ref3.front = this.front;
       if (code = Splat.compileSplattedArray(o, this.args, true)) {
         return this.compileSplat(o, code);
       }
@@ -925,21 +927,21 @@
     }
 
     Range.prototype.compileVariables = function(o) {
-      var step, _ref2, _ref3, _ref4, _ref5;
+      var step, _ref3, _ref4, _ref5, _ref6;
       o = merge(o, {
         top: true
       });
-      _ref2 = this.from.cache(o, LEVEL_LIST), this.fromC = _ref2[0], this.fromVar = _ref2[1];
-      _ref3 = this.to.cache(o, LEVEL_LIST), this.toC = _ref3[0], this.toVar = _ref3[1];
+      _ref3 = this.from.cache(o, LEVEL_LIST), this.fromC = _ref3[0], this.fromVar = _ref3[1];
+      _ref4 = this.to.cache(o, LEVEL_LIST), this.toC = _ref4[0], this.toVar = _ref4[1];
       if (step = del(o, 'step')) {
-        _ref4 = step.cache(o, LEVEL_LIST), this.step = _ref4[0], this.stepVar = _ref4[1];
+        _ref5 = step.cache(o, LEVEL_LIST), this.step = _ref5[0], this.stepVar = _ref5[1];
       }
-      _ref5 = [this.fromVar.match(SIMPLENUM), this.toVar.match(SIMPLENUM)], this.fromNum = _ref5[0], this.toNum = _ref5[1];
+      _ref6 = [this.fromVar.match(SIMPLENUM), this.toVar.match(SIMPLENUM)], this.fromNum = _ref6[0], this.toNum = _ref6[1];
       if (this.stepVar) return this.stepNum = this.stepVar.match(SIMPLENUM);
     };
 
     Range.prototype.compileNode = function(o) {
-      var cond, condPart, from, gt, idx, idxName, known, lt, namedIndex, stepPart, to, varPart, _ref2, _ref3;
+      var cond, condPart, from, gt, idx, idxName, known, lt, namedIndex, stepPart, to, varPart, _ref3, _ref4;
       if (!this.fromVar) this.compileVariables(o);
       if (!o.index) return this.compileArray(o);
       known = this.fromNum && this.toNum;
@@ -949,8 +951,8 @@
       varPart = "" + idx + " = " + this.fromC;
       if (this.toC !== this.toVar) varPart += ", " + this.toC;
       if (this.step !== this.stepVar) varPart += ", " + this.step;
-      _ref2 = ["" + idx + " <" + this.equals, "" + idx + " >" + this.equals], lt = _ref2[0], gt = _ref2[1];
-      condPart = this.stepNum ? +this.stepNum > 0 ? "" + lt + " " + this.toVar : "" + gt + " " + this.toVar : known ? ((_ref3 = [+this.fromNum, +this.toNum], from = _ref3[0], to = _ref3[1], _ref3), from <= to ? "" + lt + " " + to : "" + gt + " " + to) : (cond = "" + this.fromVar + " <= " + this.toVar, "" + cond + " ? " + lt + " " + this.toVar + " : " + gt + " " + this.toVar);
+      _ref3 = ["" + idx + " <" + this.equals, "" + idx + " >" + this.equals], lt = _ref3[0], gt = _ref3[1];
+      condPart = this.stepNum ? +this.stepNum > 0 ? "" + lt + " " + this.toVar : "" + gt + " " + this.toVar : known ? ((_ref4 = [+this.fromNum, +this.toNum], from = _ref4[0], to = _ref4[1], _ref4), from <= to ? "" + lt + " " + to : "" + gt + " " + to) : (cond = "" + this.fromVar + " <= " + this.toVar, "" + cond + " ? " + lt + " " + this.toVar + " : " + gt + " " + this.toVar);
       stepPart = this.stepVar ? "" + idx + " += " + this.stepVar : known ? namedIndex ? from <= to ? "++" + idx : "--" + idx : from <= to ? "" + idx + "++" : "" + idx + "--" : namedIndex ? "" + cond + " ? ++" + idx + " : --" + idx : "" + cond + " ? " + idx + "++ : " + idx + "--";
       if (namedIndex) varPart = "" + idxName + " = " + varPart;
       if (namedIndex) stepPart = "" + idxName + " = " + stepPart;
@@ -958,11 +960,11 @@
     };
 
     Range.prototype.compileArray = function(o) {
-      var args, body, cond, hasArgs, i, idt, post, pre, range, result, vars, _i, _ref2, _ref3, _results;
+      var args, body, cond, hasArgs, i, idt, post, pre, range, result, vars, _i, _ref3, _ref4, _results;
       if (this.fromNum && this.toNum && Math.abs(this.fromNum - this.toNum) <= 20) {
         range = (function() {
           _results = [];
-          for (var _i = _ref2 = +this.fromNum, _ref3 = +this.toNum; _ref2 <= _ref3 ? _i <= _ref3 : _i >= _ref3; _ref2 <= _ref3 ? _i++ : _i--){ _results.push(_i); }
+          for (var _i = _ref3 = +this.fromNum, _ref4 = +this.toNum; _ref3 <= _ref4 ? _i <= _ref4 : _i >= _ref4; _ref3 <= _ref4 ? _i++ : _i--){ _results.push(_i); }
           return _results;
         }).apply(this);
         if (this.exclusive) range.pop();
@@ -1008,8 +1010,8 @@
     }
 
     Slice.prototype.compileNode = function(o) {
-      var compiled, from, fromStr, to, toStr, _ref2;
-      _ref2 = this.range, to = _ref2.to, from = _ref2.from;
+      var compiled, from, fromStr, to, toStr, _ref3;
+      _ref3 = this.range, to = _ref3.to, from = _ref3.from;
       fromStr = from && from.compile(o, LEVEL_PAREN) || '0';
       compiled = to && to.compile(o, LEVEL_ACCESS);
       if (to && !(!this.range.exclusive && +compiled === -1)) {
@@ -1036,12 +1038,25 @@
     Obj.prototype.children = ['properties'];
 
     Obj.prototype.compileNode = function(o) {
-      var i, idt, indent, join, lastNoncom, node, obj, prop, props, _i, _len;
+      var i, idt, indent, join, lastNoncom, node, obj, prop, propName, propNames, props, _i, _j, _len, _len2, _ref3;
       props = this.properties;
+      propNames = [];
+      _ref3 = this.properties;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        prop = _ref3[_i];
+        if (prop.isComplex()) prop = prop.variable;
+        if (prop != null) {
+          propName = prop.unwrapAll().value.toString();
+          if (__indexOf.call(propNames, propName) >= 0) {
+            throw SyntaxError("multiple object literal properties named \"" + propName + "\"");
+          }
+          propNames.push(propName);
+        }
+      }
       if (!props.length) return (this.front ? '({})' : '{}');
       if (this.generated) {
-        for (_i = 0, _len = props.length; _i < _len; _i++) {
-          node = props[_i];
+        for (_j = 0, _len2 = props.length; _j < _len2; _j++) {
+          node = props[_j];
           if (node instanceof Value) {
             throw new Error('cannot have an implicit value in an implicit object');
           }
@@ -1050,9 +1065,9 @@
       idt = o.indent += TAB;
       lastNoncom = this.lastNonComment(this.properties);
       props = (function() {
-        var _j, _len2, _results;
+        var _k, _len3, _results;
         _results = [];
-        for (i = _j = 0, _len2 = props.length; _j < _len2; i = ++_j) {
+        for (i = _k = 0, _len3 = props.length; _k < _len3; i = ++_k) {
           prop = props[i];
           join = i === props.length - 1 ? '' : prop === lastNoncom || prop instanceof Comment ? '\n' : ',\n';
           indent = prop instanceof Comment ? '' : idt;
@@ -1077,10 +1092,10 @@
     };
 
     Obj.prototype.assigns = function(name) {
-      var prop, _i, _len, _ref2;
-      _ref2 = this.properties;
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        prop = _ref2[_i];
+      var prop, _i, _len, _ref3;
+      _ref3 = this.properties;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        prop = _ref3[_i];
         if (prop.assigns(name)) return true;
       }
       return false;
@@ -1127,10 +1142,10 @@
     };
 
     Arr.prototype.assigns = function(name) {
-      var obj, _i, _len, _ref2;
-      _ref2 = this.objects;
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        obj = _ref2[_i];
+      var obj, _i, _len, _ref3;
+      _ref3 = this.objects;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        obj = _ref3[_i];
         if (obj.assigns(name)) return true;
       }
       return false;
@@ -1160,6 +1175,9 @@
       var decl, tail;
       if (!this.variable) return null;
       decl = (tail = last(this.variable.properties)) ? tail instanceof Access && tail.name.value : this.variable.base.value;
+      if (__indexOf.call(STRICT_PROSCRIBED, decl) >= 0) {
+        throw SyntaxError("variable name may not be " + decl);
+      }
       return decl && (decl = IDENTIFIER.test(decl) && decl);
     };
 
@@ -1176,12 +1194,12 @@
     };
 
     Class.prototype.addBoundFunctions = function(o) {
-      var bvar, lhs, _i, _len, _ref2, _results;
+      var bvar, lhs, _i, _len, _ref3, _results;
       if (this.boundFuncs.length) {
-        _ref2 = this.boundFuncs;
+        _ref3 = this.boundFuncs;
         _results = [];
-        for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-          bvar = _ref2[_i];
+        for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+          bvar = _ref3[_i];
           lhs = (new Value(new Literal("this"), [new Access(bvar)])).compile(o);
           _results.push(this.ctor.body.unshift(new Literal("" + lhs + " = " + (utility('bind')) + "(" + lhs + ", this)")));
         }
@@ -1215,7 +1233,7 @@
               }
             } else {
               if (assign.variable["this"]) {
-                func.static = true;
+                func["static"] = true;
                 if (func.bound) func.context = name;
               } else {
                 assign.variable = new Value(new Literal(name), [new Access(new Literal('prototype')), new Access(base)]);
@@ -1236,12 +1254,12 @@
     Class.prototype.walkBody = function(name, o) {
       var _this = this;
       return this.traverseChildren(false, function(child) {
-        var exps, i, node, _i, _len, _ref2;
+        var exps, i, node, _i, _len, _ref3;
         if (child instanceof Class) return false;
         if (child instanceof Block) {
-          _ref2 = exps = child.expressions;
-          for (i = _i = 0, _len = _ref2.length; _i < _len; i = ++_i) {
-            node = _ref2[i];
+          _ref3 = exps = child.expressions;
+          for (i = _i = 0, _len = _ref3.length; _i < _len; i = ++_i) {
+            node = _ref3[i];
             if (node instanceof Value && node.isObject(true)) {
               exps[i] = _this.addProperties(node, name, o);
             }
@@ -1279,7 +1297,7 @@
     };
 
     Class.prototype.compileNode = function(o) {
-      var call, decl, klass, lname, name, params, _ref2;
+      var call, decl, klass, lname, name, params, _ref3;
       decl = this.determineName();
       name = decl || '_Class';
       if (name.reserved) name = "_" + name;
@@ -1294,7 +1312,7 @@
         this.body.expressions.unshift(new Assign(new Value(new Literal(name), [new Access(new Literal('name'))]), new Literal("'" + name + "'")));
       }
       this.body.expressions.push(lname);
-      (_ref2 = this.body.expressions).unshift.apply(_ref2, this.directives);
+      (_ref3 = this.body.expressions).unshift.apply(_ref3, this.directives);
       this.addBoundFunctions(o);
       call = Closure.wrap(this.body);
       if (this.parent) {
@@ -1320,11 +1338,15 @@
     Assign.name = 'Assign';
 
     function Assign(variable, value, context, options) {
+      var name, _ref3;
       this.variable = variable;
       this.value = value;
       this.context = context;
       this.param = options && options.param;
       this.subpattern = options && options.subpattern;
+      if (name = (_ref3 = this.variable.unwrapAll().value, __indexOf.call(STRICT_PROSCRIBED, _ref3) >= 0)) {
+        throw SyntaxError("variable name may not be \"" + name + "\"");
+      }
     }
 
     Assign.prototype.children = ['variable', 'value'];
@@ -1342,13 +1364,13 @@
     };
 
     Assign.prototype.compileNode = function(o) {
-      var isValue, match, name, val, varBase, _ref2, _ref3, _ref4, _ref5;
+      var isValue, match, name, val, varBase, _ref3, _ref4, _ref5, _ref6;
       if (isValue = this.variable instanceof Value) {
         if (this.variable.isArray() || this.variable.isObject()) {
           return this.compilePatternMatch(o);
         }
         if (this.variable.isSplice()) return this.compileSplice(o);
-        if ((_ref2 = this.context) === '||=' || _ref2 === '&&=' || _ref2 === '?=') {
+        if ((_ref3 = this.context) === '||=' || _ref3 === '&&=' || _ref3 === '?=') {
           return this.compileConditional(o);
         }
       }
@@ -1367,7 +1389,7 @@
       }
       if (this.value instanceof Code && (match = METHOD_DEF.exec(name))) {
         if (match[1]) this.value.klass = match[1];
-        this.value.name = (_ref3 = (_ref4 = (_ref5 = match[2]) != null ? _ref5 : match[3]) != null ? _ref4 : match[4]) != null ? _ref3 : match[5];
+        this.value.name = (_ref4 = (_ref5 = (_ref6 = match[2]) != null ? _ref6 : match[3]) != null ? _ref5 : match[4]) != null ? _ref4 : match[5];
       }
       val = this.value.compile(o, LEVEL_LIST);
       if (this.context === 'object') return "" + name + ": " + val;
@@ -1380,7 +1402,7 @@
     };
 
     Assign.prototype.compilePatternMatch = function(o) {
-      var acc, assigns, code, i, idx, isObject, ivar, name, obj, objects, olen, ref, rest, splat, top, val, value, vvar, _i, _len, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7, _ref8;
+      var acc, assigns, code, i, idx, isObject, ivar, name, obj, objects, olen, ref, rest, splat, top, val, value, vvar, _i, _len, _ref3, _ref4, _ref5, _ref6, _ref7, _ref8, _ref9;
       top = o.level === LEVEL_TOP;
       value = this.value;
       objects = this.variable.base.objects;
@@ -1395,10 +1417,10 @@
       isObject = this.variable.isObject();
       if (top && olen === 1 && !((obj = objects[0]) instanceof Splat)) {
         if (obj instanceof Assign) {
-          _ref2 = obj, (_ref3 = _ref2.variable, idx = _ref3.base), obj = _ref2.value;
+          _ref3 = obj, (_ref4 = _ref3.variable, idx = _ref4.base), obj = _ref3.value;
         } else {
           if (obj.base instanceof Parens) {
-            _ref4 = new Value(obj.unwrapAll()).cacheReference(o), obj = _ref4[0], idx = _ref4[1];
+            _ref5 = new Value(obj.unwrapAll()).cacheReference(o), obj = _ref5[0], idx = _ref5[1];
           } else {
             idx = isObject ? obj["this"] ? obj.properties[0].name : obj : new Literal(0);
           }
@@ -1406,7 +1428,7 @@
         acc = IDENTIFIER.test(idx.unwrap().value || 0);
         value = new Value(value);
         value.properties.push(new (acc ? Access : Index)(idx));
-        if (_ref5 = obj.unwrap().value, __indexOf.call(['arguments', 'eval'].concat(RESERVED), _ref5) >= 0) {
+        if (_ref6 = obj.unwrap().value, __indexOf.call(RESERVED, _ref6) >= 0) {
           throw new SyntaxError("assignment to a reserved word: " + (obj.compile(o)) + " = " + (value.compile(o)));
         }
         return new Assign(obj, value, null, {
@@ -1425,10 +1447,10 @@
         idx = i;
         if (isObject) {
           if (obj instanceof Assign) {
-            _ref6 = obj, (_ref7 = _ref6.variable, idx = _ref7.base), obj = _ref6.value;
+            _ref7 = obj, (_ref8 = _ref7.variable, idx = _ref8.base), obj = _ref7.value;
           } else {
             if (obj.base instanceof Parens) {
-              _ref8 = new Value(obj.unwrapAll()).cacheReference(o), obj = _ref8[0], idx = _ref8[1];
+              _ref9 = new Value(obj.unwrapAll()).cacheReference(o), obj = _ref9[0], idx = _ref9[1];
             } else {
               idx = obj["this"] ? obj.properties[0].name : obj;
             }
@@ -1460,7 +1482,7 @@
           }
           val = new Value(new Literal(vvar), [new (acc ? Access : Index)(idx)]);
         }
-        if ((name != null) && __indexOf.call(['arguments', 'eval'].concat(RESERVED), name) >= 0) {
+        if ((name != null) && __indexOf.call(RESERVED, name) >= 0) {
           throw new SyntaxError("assignment to a reserved word: " + (obj.compile(o)) + " = " + (val.compile(o)));
         }
         assigns.push(new Assign(obj, val, null, {
@@ -1478,17 +1500,17 @@
     };
 
     Assign.prototype.compileConditional = function(o) {
-      var left, rite, _ref2;
-      _ref2 = this.variable.cacheReference(o), left = _ref2[0], rite = _ref2[1];
+      var left, rite, _ref3;
+      _ref3 = this.variable.cacheReference(o), left = _ref3[0], rite = _ref3[1];
       if (__indexOf.call(this.context, "?") >= 0) o.isExistentialEquals = true;
       return new Op(this.context.slice(0, -1), left, new Assign(rite, this.value, '=')).compile(o);
     };
 
     Assign.prototype.compileSplice = function(o) {
-      var code, exclusive, from, fromDecl, fromRef, name, to, valDef, valRef, _ref2, _ref3, _ref4;
-      _ref2 = this.variable.properties.pop().range, from = _ref2.from, to = _ref2.to, exclusive = _ref2.exclusive;
+      var code, exclusive, from, fromDecl, fromRef, name, to, valDef, valRef, _ref3, _ref4, _ref5;
+      _ref3 = this.variable.properties.pop().range, from = _ref3.from, to = _ref3.to, exclusive = _ref3.exclusive;
       name = this.variable.compile(o);
-      _ref3 = (from != null ? from.cache(o, LEVEL_OP) : void 0) || ['0', '0'], fromDecl = _ref3[0], fromRef = _ref3[1];
+      _ref4 = (from != null ? from.cache(o, LEVEL_OP) : void 0) || ['0', '0'], fromDecl = _ref4[0], fromRef = _ref4[1];
       if (to) {
         if ((from != null ? from.isSimpleNumber() : void 0) && to.isSimpleNumber()) {
           to = +to.compile(o) - +fromRef;
@@ -1500,7 +1522,7 @@
       } else {
         to = "9e9";
       }
-      _ref4 = this.value.cache(o, LEVEL_LIST), valDef = _ref4[0], valRef = _ref4[1];
+      _ref5 = this.value.cache(o, LEVEL_LIST), valDef = _ref5[0], valRef = _ref5[1];
       code = "[].splice.apply(" + name + ", [" + fromDecl + ", " + to + "].concat(" + valDef + ")), " + valRef;
       if (o.level > LEVEL_TOP) {
         return "(" + code + ")";
@@ -1535,37 +1557,42 @@
     Code.prototype.jumps = NO;
 
     Code.prototype.compileNode = function(o) {
-      var code, exprs, i, idt, lit, p, param, ref, splats, v, val, vars, wasEmpty, _i, _j, _k, _l, _len, _len2, _len3, _len4, _ref2, _ref3, _ref4, _ref5, _ref6;
+      var code, exprs, i, idt, lit, name, p, param, params, ref, splats, uniqs, val, wasEmpty, _i, _j, _k, _l, _len, _len2, _len3, _len4, _len5, _len6, _m, _n, _ref3, _ref4, _ref5, _ref6, _ref7, _ref8, _ref9;
       o.scope = new Scope(o.scope, this.body, this);
       o.scope.shared = del(o, 'sharedScope');
       o.indent += TAB;
       delete o.bare;
-      vars = [];
+      params = [];
       exprs = [];
-      _ref2 = this.params;
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        param = _ref2[_i];
+      _ref3 = this.paramNames();
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        name = _ref3[_i];
+        if (!o.scope.check(name)) o.scope.parameter(name);
+      }
+      _ref4 = this.params;
+      for (_j = 0, _len2 = _ref4.length; _j < _len2; _j++) {
+        param = _ref4[_j];
         if (!param.splat) continue;
-        _ref3 = this.params;
-        for (_j = 0, _len2 = _ref3.length; _j < _len2; _j++) {
-          p = _ref3[_j];
+        _ref5 = this.params;
+        for (_k = 0, _len3 = _ref5.length; _k < _len3; _k++) {
+          p = _ref5[_k];
           if (p.name.value) o.scope.add(p.name.value, 'var', true);
         }
         splats = new Assign(new Value(new Arr((function() {
-          var _k, _len3, _ref4, _results;
-          _ref4 = this.params;
+          var _l, _len4, _ref6, _results;
+          _ref6 = this.params;
           _results = [];
-          for (_k = 0, _len3 = _ref4.length; _k < _len3; _k++) {
-            p = _ref4[_k];
+          for (_l = 0, _len4 = _ref6.length; _l < _len4; _l++) {
+            p = _ref6[_l];
             _results.push(p.asReference(o));
           }
           return _results;
         }).call(this))), new Value(new Literal('arguments')));
         break;
       }
-      _ref4 = this.params;
-      for (_k = 0, _len3 = _ref4.length; _k < _len3; _k++) {
-        param = _ref4[_k];
+      _ref6 = this.params;
+      for (_l = 0, _len4 = _ref6.length; _l < _len4; _l++) {
+        param = _ref6[_l];
         if (param.isComplex()) {
           val = ref = param.asReference(o);
           if (param.value) val = new Op('?', ref, param.value);
@@ -1580,31 +1607,38 @@
             exprs.push(new If(lit, val));
           }
         }
-        if (!splats) vars.push(ref);
+        if (!splats) params.push(ref);
       }
       wasEmpty = this.body.isEmpty();
       if (splats) exprs.unshift(splats);
       if (exprs.length) {
-        (_ref5 = this.body.expressions).unshift.apply(_ref5, exprs);
-      }
-      if (!splats) {
-        for (i = _l = 0, _len4 = vars.length; _l < _len4; i = ++_l) {
-          v = vars[i];
-          o.scope.parameter(vars[i] = v.compile(o));
+        (_ref7 = this.body.expressions).unshift.apply(_ref7, exprs);
+      }
+      for (i = _m = 0, _len5 = params.length; _m < _len5; i = ++_m) {
+        p = params[i];
+        o.scope.parameter(params[i] = p.compile(o));
+      }
+      uniqs = [];
+      _ref8 = this.paramNames();
+      for (_n = 0, _len6 = _ref8.length; _n < _len6; _n++) {
+        name = _ref8[_n];
+        if (__indexOf.call(uniqs, name) >= 0) {
+          throw SyntaxError("multiple parameters named '" + name + "'");
         }
+        uniqs.push(name);
       }
       if (!(wasEmpty || this.noReturn)) this.body.makeReturn();
       if (this.bound) {
-        if ((_ref6 = o.scope.parent.method) != null ? _ref6.bound : void 0) {
+        if ((_ref9 = o.scope.parent.method) != null ? _ref9.bound : void 0) {
           this.bound = this.context = o.scope.parent.method.context;
-        } else if (!this.static) {
+        } else if (!this["static"]) {
           o.scope.parent.assign('_this', 'this');
         }
       }
       idt = o.indent;
       code = 'function';
       if (this.ctor) code += ' ' + this.name;
-      code += '(' + vars.join(', ') + ') {';
+      code += '(' + params.join(', ') + ') {';
       if (!this.body.isEmpty()) {
         code += "\n" + (this.body.compileWithDeclarations(o)) + "\n" + this.tab;
       }
@@ -1617,6 +1651,17 @@
       }
     };
 
+    Code.prototype.paramNames = function() {
+      var names, param, _i, _len, _ref3;
+      names = [];
+      _ref3 = this.params;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        param = _ref3[_i];
+        names.push.apply(names, param.names());
+      }
+      return names;
+    };
+
     Code.prototype.traverseChildren = function(crossScope, func) {
       if (crossScope) {
         return Code.__super__.traverseChildren.call(this, crossScope, func);
@@ -1634,9 +1679,13 @@
     Param.name = 'Param';
 
     function Param(name, value, splat) {
+      var _ref3;
       this.name = name;
       this.value = value;
       this.splat = splat;
+      if (name = (_ref3 = this.name.unwrapAll().value, __indexOf.call(STRICT_PROSCRIBED, _ref3) >= 0)) {
+        throw SyntaxError("parameter name \"" + name + "\" is not allowed");
+      }
     }
 
     Param.prototype.children = ['name', 'value'];
@@ -1651,7 +1700,9 @@
       node = this.name;
       if (node["this"]) {
         node = node.properties[0].name;
-        if (node.value.reserved) node = new Literal('_' + node.value);
+        if (node.value.reserved) {
+          node = new Literal(o.scope.freeVariable(node.value));
+        }
       } else if (node.isComplex()) {
         node = new Literal(o.scope.freeVariable('arg'));
       }
@@ -1664,6 +1715,37 @@
       return this.name.isComplex();
     };
 
+    Param.prototype.names = function(name) {
+      var atParam, names, obj, _i, _len, _ref3;
+      if (name == null) name = this.name;
+      atParam = function(obj) {
+        var value;
+        value = obj.properties[0].name.value;
+        if (value.reserved) {
+          return [];
+        } else {
+          return [value];
+        }
+      };
+      if (name instanceof Literal) return [name.value];
+      if (name instanceof Value) return atParam(name);
+      names = [];
+      _ref3 = name.objects;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        obj = _ref3[_i];
+        if (obj instanceof Assign) {
+          names.push(obj.variable.base.value);
+        } else if (obj.isArray() || obj.isObject()) {
+          names.push.apply(names, this.names(obj.base));
+        } else if (obj["this"]) {
+          names.push.apply(names, atParam(obj));
+        } else {
+          names.push(obj.base.value);
+        }
+      }
+      return names;
+    };
+
     return Param;
 
   })(Base);
@@ -1720,11 +1802,11 @@
         return args[0] + (".concat(" + (args.slice(1).join(', ')) + ")");
       }
       base = (function() {
-        var _j, _len2, _ref2, _results;
-        _ref2 = list.slice(0, index);
+        var _j, _len2, _ref3, _results;
+        _ref3 = list.slice(0, index);
         _results = [];
-        for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) {
-          node = _ref2[_j];
+        for (_j = 0, _len2 = _ref3.length; _j < _len2; _j++) {
+          node = _ref3[_j];
           _results.push(node.compile(o, LEVEL_LIST));
         }
         return _results;
@@ -1855,17 +1937,17 @@
     };
 
     Op.prototype.isComplex = function() {
-      var _ref2;
-      return !(this.isUnary() && ((_ref2 = this.operator) === '+' || _ref2 === '-')) || this.first.isComplex();
+      var _ref3;
+      return !(this.isUnary() && ((_ref3 = this.operator) === '+' || _ref3 === '-')) || this.first.isComplex();
     };
 
     Op.prototype.isChainable = function() {
-      var _ref2;
-      return (_ref2 = this.operator) === '<' || _ref2 === '>' || _ref2 === '>=' || _ref2 === '<=' || _ref2 === '===' || _ref2 === '!==';
+      var _ref3;
+      return (_ref3 = this.operator) === '<' || _ref3 === '>' || _ref3 === '>=' || _ref3 === '<=' || _ref3 === '===' || _ref3 === '!==';
     };
 
     Op.prototype.invert = function() {
-      var allInvertable, curr, fst, op, _ref2;
+      var allInvertable, curr, fst, op, _ref3;
       if (this.isChainable() && this.first.isChainable()) {
         allInvertable = true;
         curr = this;
@@ -1887,7 +1969,7 @@
         return this;
       } else if (this.second) {
         return new Parens(this).invert();
-      } else if (this.operator === '!' && (fst = this.first.unwrap()) instanceof Op && ((_ref2 = fst.operator) === '!' || _ref2 === 'in' || _ref2 === 'instanceof')) {
+      } else if (this.operator === '!' && (fst = this.first.unwrap()) instanceof Op && ((_ref3 = fst.operator) === '!' || _ref3 === 'in' || _ref3 === 'instanceof')) {
         return fst;
       } else {
         return new Op('!', this);
@@ -1895,17 +1977,17 @@
     };
 
     Op.prototype.unfoldSoak = function(o) {
-      var _ref2;
-      return ((_ref2 = this.operator) === '++' || _ref2 === '--' || _ref2 === 'delete') && unfoldSoak(o, this, 'first');
+      var _ref3;
+      return ((_ref3 = this.operator) === '++' || _ref3 === '--' || _ref3 === 'delete') && unfoldSoak(o, this, 'first');
     };
 
     Op.prototype.generateDo = function(exp) {
-      var call, func, param, passedParams, ref, _i, _len, _ref2;
+      var call, func, param, passedParams, ref, _i, _len, _ref3;
       passedParams = [];
       func = exp instanceof Assign && (ref = exp.value.unwrap()) instanceof Code ? ref : exp;
-      _ref2 = func.params || [];
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        param = _ref2[_i];
+      _ref3 = func.params || [];
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        param = _ref3[_i];
         if (param.value) {
           passedParams.push(param.value);
           delete param.value;
@@ -1919,9 +2001,15 @@
     };
 
     Op.prototype.compileNode = function(o) {
-      var code, isChain;
+      var code, isChain, _ref3, _ref4;
       isChain = this.isChainable() && this.first.isChainable();
       if (!isChain) this.first.front = this.front;
+      if (this.operator === 'delete' && o.scope.check(this.first.unwrapAll().value)) {
+        throw SyntaxError('delete operand may not be argument or var');
+      }
+      if (((_ref3 = this.operator) === '--' || _ref3 === '++') && (_ref4 = this.first.unwrapAll().value, __indexOf.call(STRICT_PROSCRIBED, _ref4) >= 0)) {
+        throw SyntaxError('prefix increment/decrement may not have eval or arguments operand');
+      }
       if (this.isUnary()) return this.compileUnary(o);
       if (isChain) return this.compileChain(o);
       if (this.operator === '?') return this.compileExistence(o);
@@ -1934,8 +2022,8 @@
     };
 
     Op.prototype.compileChain = function(o) {
-      var code, fst, shared, _ref2;
-      _ref2 = this.first.second.cache(o), this.first.second = _ref2[0], shared = _ref2[1];
+      var code, fst, shared, _ref3;
+      _ref3 = this.first.second.cache(o), this.first.second = _ref3[0], shared = _ref3[1];
       fst = this.first.compile(o, LEVEL_OP);
       code = "" + fst + " " + (this.invert ? '&&' : '||') + " " + (shared.compile(o)) + " " + this.operator + " " + (this.second.compile(o, LEVEL_OP));
       return "(" + code + ")";
@@ -1994,11 +2082,11 @@
     In.prototype.invert = NEGATE;
 
     In.prototype.compileNode = function(o) {
-      var hasSplat, obj, _i, _len, _ref2;
+      var hasSplat, obj, _i, _len, _ref3;
       if (this.array instanceof Value && this.array.isArray()) {
-        _ref2 = this.array.base.objects;
-        for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-          obj = _ref2[_i];
+        _ref3 = this.array.base.objects;
+        for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+          obj = _ref3[_i];
           if (!(obj instanceof Splat)) continue;
           hasSplat = true;
           break;
@@ -2009,16 +2097,16 @@
     };
 
     In.prototype.compileOrTest = function(o) {
-      var cmp, cnj, i, item, ref, sub, tests, _ref2, _ref3;
+      var cmp, cnj, i, item, ref, sub, tests, _ref3, _ref4;
       if (this.array.base.objects.length === 0) return "" + (!!this.negated);
-      _ref2 = this.object.cache(o, LEVEL_OP), sub = _ref2[0], ref = _ref2[1];
-      _ref3 = this.negated ? [' !== ', ' && '] : [' === ', ' || '], cmp = _ref3[0], cnj = _ref3[1];
+      _ref3 = this.object.cache(o, LEVEL_OP), sub = _ref3[0], ref = _ref3[1];
+      _ref4 = this.negated ? [' !== ', ' && '] : [' === ', ' || '], cmp = _ref4[0], cnj = _ref4[1];
       tests = (function() {
-        var _i, _len, _ref4, _results;
-        _ref4 = this.array.base.objects;
+        var _i, _len, _ref5, _results;
+        _ref5 = this.array.base.objects;
         _results = [];
-        for (i = _i = 0, _len = _ref4.length; _i < _len; i = ++_i) {
-          item = _ref4[i];
+        for (i = _i = 0, _len = _ref5.length; _i < _len; i = ++_i) {
+          item = _ref5[i];
           _results.push((i ? ref : sub) + cmp + item.compile(o, LEVEL_ACCESS));
         }
         return _results;
@@ -2032,8 +2120,8 @@
     };
 
     In.prototype.compileLoopTest = function(o) {
-      var code, ref, sub, _ref2;
-      _ref2 = this.object.cache(o, LEVEL_LIST), sub = _ref2[0], ref = _ref2[1];
+      var code, ref, sub, _ref3;
+      _ref3 = this.object.cache(o, LEVEL_LIST), sub = _ref3[0], ref = _ref3[1];
       code = utility('indexOf') + (".call(" + (this.array.compile(o, LEVEL_LIST)) + ", " + ref + ") ") + (this.negated ? '< 0' : '>= 0');
       if (sub === ref) return code;
       code = sub + ', ' + code;
@@ -2070,8 +2158,8 @@
     Try.prototype.isStatement = YES;
 
     Try.prototype.jumps = function(o) {
-      var _ref2;
-      return this.attempt.jumps(o) || ((_ref2 = this.recovery) != null ? _ref2.jumps(o) : void 0);
+      var _ref3;
+      return this.attempt.jumps(o) || ((_ref3 = this.recovery) != null ? _ref3.jumps(o) : void 0);
     };
 
     Try.prototype.makeReturn = function(res) {
@@ -2085,7 +2173,20 @@
       o.indent += TAB;
       errorPart = this.error ? " (" + (this.error.compile(o)) + ") " : ' ';
       tryPart = this.attempt.compile(o, LEVEL_TOP);
-      catchPart = this.recovery ? (!o.scope.check(this.error.value) ? o.scope.add(this.error.value, 'param') : void 0, " catch" + errorPart + "{\n" + (this.recovery.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}") : !(this.ensure || this.recovery) ? ' catch (_error) {}' : void 0;
+      catchPart = (function() {
+        var _ref3;
+        if (this.recovery) {
+          if (_ref3 = this.error.value, __indexOf.call(STRICT_PROSCRIBED, _ref3) >= 0) {
+            throw SyntaxError("catch variable may not be \"" + this.error.value + "\"");
+          }
+          if (!o.scope.check(this.error.value)) {
+            o.scope.add(this.error.value, 'param');
+          }
+          return " catch" + errorPart + "{\n" + (this.recovery.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}";
+        } else if (!(this.ensure || this.recovery)) {
+          return ' catch (_error) {}';
+        }
+      }).call(this);
       ensurePart = this.ensure ? " finally {\n" + (this.ensure.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}" : '';
       return "" + this.tab + "try {\n" + tryPart + "\n" + this.tab + "}" + (catchPart || '') + ensurePart;
     };
@@ -2135,11 +2236,11 @@
     Existence.prototype.invert = NEGATE;
 
     Existence.prototype.compileNode = function(o) {
-      var cmp, cnj, code, _ref2;
+      var cmp, cnj, code, _ref3;
       this.expression.front = this.front;
       code = this.expression.compile(o, LEVEL_OP);
       if (IDENTIFIER.test(code) && !o.scope.check(code)) {
-        _ref2 = this.negated ? ['===', '||'] : ['!==', '&&'], cmp = _ref2[0], cnj = _ref2[1];
+        _ref3 = this.negated ? ['===', '||'] : ['!==', '&&'], cmp = _ref3[0], cnj = _ref3[1];
         code = "typeof " + code + " " + cmp + " \"undefined\" " + cnj + " " + code + " " + cmp + " null";
       } else {
         code = "" + code + " " + (this.negated ? '==' : '!=') + " null";
@@ -2202,13 +2303,13 @@
     For.name = 'For';
 
     function For(body, source) {
-      var _ref2;
+      var _ref3;
       this.source = source.source, this.guard = source.guard, this.step = source.step, this.name = source.name, this.index = source.index;
       this.body = Block.wrap([body]);
       this.own = !!source.own;
       this.object = !!source.object;
       if (this.object) {
-        _ref2 = [this.index, this.name], this.name = _ref2[0], this.index = _ref2[1];
+        _ref3 = [this.index, this.name], this.name = _ref3[0], this.index = _ref3[1];
       }
       if (this.index instanceof Value) {
         throw SyntaxError('index cannot be a pattern matching expression');
@@ -2227,9 +2328,9 @@
     For.prototype.children = ['body', 'source', 'guard', 'step'];
 
     For.prototype.compileNode = function(o) {
-      var body, defPart, forPart, forVarPart, guardPart, idt1, index, ivar, kvar, kvarAssign, lastJumps, lvar, name, namePart, ref, resultPart, returnResult, rvar, scope, source, stepPart, stepvar, svar, varPart, _ref2;
+      var body, defPart, forPart, forVarPart, guardPart, idt1, index, ivar, kvar, kvarAssign, lastJumps, lvar, name, namePart, ref, resultPart, returnResult, rvar, scope, source, stepPart, stepvar, svar, varPart, _ref3;
       body = Block.wrap([this.body]);
-      lastJumps = (_ref2 = last(body.expressions)) != null ? _ref2.jumps() : void 0;
+      lastJumps = (_ref3 = last(body.expressions)) != null ? _ref3.jumps() : void 0;
       if (lastJumps && lastJumps instanceof Return) this.returns = false;
       source = this.range ? this.source.base : this.source;
       scope = o.scope;
@@ -2311,21 +2412,21 @@
     };
 
     For.prototype.pluckDirectCall = function(o, body) {
-      var base, defs, expr, fn, idx, ref, val, _i, _len, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7;
+      var base, defs, expr, fn, idx, ref, val, _i, _len, _ref3, _ref4, _ref5, _ref6, _ref7, _ref8;
       defs = '';
-      _ref2 = body.expressions;
-      for (idx = _i = 0, _len = _ref2.length; _i < _len; idx = ++_i) {
-        expr = _ref2[idx];
+      _ref3 = body.expressions;
+      for (idx = _i = 0, _len = _ref3.length; _i < _len; idx = ++_i) {
+        expr = _ref3[idx];
         expr = expr.unwrapAll();
         if (!(expr instanceof Call)) continue;
         val = expr.variable.unwrapAll();
-        if (!((val instanceof Code) || (val instanceof Value && ((_ref3 = val.base) != null ? _ref3.unwrapAll() : void 0) instanceof Code && val.properties.length === 1 && ((_ref4 = (_ref5 = val.properties[0].name) != null ? _ref5.value : void 0) === 'call' || _ref4 === 'apply')))) {
+        if (!((val instanceof Code) || (val instanceof Value && ((_ref4 = val.base) != null ? _ref4.unwrapAll() : void 0) instanceof Code && val.properties.length === 1 && ((_ref5 = (_ref6 = val.properties[0].name) != null ? _ref6.value : void 0) === 'call' || _ref5 === 'apply')))) {
           continue;
         }
-        fn = ((_ref6 = val.base) != null ? _ref6.unwrapAll() : void 0) || val;
+        fn = ((_ref7 = val.base) != null ? _ref7.unwrapAll() : void 0) || val;
         ref = new Literal(o.scope.freeVariable('fn'));
         base = new Value(ref);
-        if (val.base) _ref7 = [base, val], val.base = _ref7[0], base = _ref7[1];
+        if (val.base) _ref8 = [base, val], val.base = _ref8[0], base = _ref8[1];
         body.expressions[idx] = new Call(base, expr.args);
         defs += this.tab + new Assign(ref, fn).compile(o, LEVEL_TOP) + ';\n';
       }
@@ -2353,45 +2454,45 @@
     Switch.prototype.isStatement = YES;
 
     Switch.prototype.jumps = function(o) {
-      var block, conds, _i, _len, _ref2, _ref3, _ref4;
+      var block, conds, _i, _len, _ref3, _ref4, _ref5;
       if (o == null) {
         o = {
           block: true
         };
       }
-      _ref2 = this.cases;
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        _ref3 = _ref2[_i], conds = _ref3[0], block = _ref3[1];
+      _ref3 = this.cases;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        _ref4 = _ref3[_i], conds = _ref4[0], block = _ref4[1];
         if (block.jumps(o)) return block;
       }
-      return (_ref4 = this.otherwise) != null ? _ref4.jumps(o) : void 0;
+      return (_ref5 = this.otherwise) != null ? _ref5.jumps(o) : void 0;
     };
 
     Switch.prototype.makeReturn = function(res) {
-      var pair, _i, _len, _ref2, _ref3;
-      _ref2 = this.cases;
-      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
-        pair = _ref2[_i];
+      var pair, _i, _len, _ref3, _ref4;
+      _ref3 = this.cases;
+      for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
+        pair = _ref3[_i];
         pair[1].makeReturn(res);
       }
       if (res) {
         this.otherwise || (this.otherwise = new Block([new Literal('void 0')]));
       }
-      if ((_ref3 = this.otherwise) != null) _ref3.makeReturn(res);
+      if ((_ref4 = this.otherwise) != null) _ref4.makeReturn(res);
       return this;
     };
 
     Switch.prototype.compileNode = function(o) {
-      var block, body, code, cond, conditions, expr, i, idt1, idt2, _i, _j, _len, _len2, _ref2, _ref3, _ref4, _ref5;
+      var block, body, code, cond, conditions, expr, i, idt1, idt2, _i, _j, _len, _len2, _ref3, _ref4, _ref5, _ref6;
       idt1 = o.indent + TAB;
       idt2 = o.indent = idt1 + TAB;
-      code = this.tab + ("switch (" + (((_ref2 = this.subject) != null ? _ref2.compile(o, LEVEL_PAREN) : void 0) || false) + ") {\n");
-      _ref3 = this.cases;
-      for (i = _i = 0, _len = _ref3.length; _i < _len; i = ++_i) {
-        _ref4 = _ref3[i], conditions = _ref4[0], block = _ref4[1];
-        _ref5 = flatten([conditions]);
-        for (_j = 0, _len2 = _ref5.length; _j < _len2; _j++) {
-          cond = _ref5[_j];
+      code = this.tab + ("switch (" + (((_ref3 = this.subject) != null ? _ref3.compile(o, LEVEL_PAREN) : void 0) || false) + ") {\n");
+      _ref4 = this.cases;
+      for (i = _i = 0, _len = _ref4.length; _i < _len; i = ++_i) {
+        _ref5 = _ref4[i], conditions = _ref5[0], block = _ref5[1];
+        _ref6 = flatten([conditions]);
+        for (_j = 0, _len2 = _ref6.length; _j < _len2; _j++) {
+          cond = _ref6[_j];
           if (!this.subject) cond = cond.invert();
           code += idt1 + ("case " + (cond.compile(o, LEVEL_PAREN)) + ":\n");
         }
@@ -2431,13 +2532,13 @@
     If.prototype.children = ['condition', 'body', 'elseBody'];
 
     If.prototype.bodyNode = function() {
-      var _ref2;
-      return (_ref2 = this.body) != null ? _ref2.unwrap() : void 0;
+      var _ref3;
+      return (_ref3 = this.body) != null ? _ref3.unwrap() : void 0;
     };
 
     If.prototype.elseBodyNode = function() {
-      var _ref2;
-      return (_ref2 = this.elseBody) != null ? _ref2.unwrap() : void 0;
+      var _ref3;
+      return (_ref3 = this.elseBody) != null ? _ref3.unwrap() : void 0;
     };
 
     If.prototype.addElse = function(elseBody) {
@@ -2451,13 +2552,13 @@
     };
 
     If.prototype.isStatement = function(o) {
-      var _ref2;
-      return (o != null ? o.level : void 0) === LEVEL_TOP || this.bodyNode().isStatement(o) || ((_ref2 = this.elseBodyNode()) != null ? _ref2.isStatement(o) : void 0);
+      var _ref3;
+      return (o != null ? o.level : void 0) === LEVEL_TOP || this.bodyNode().isStatement(o) || ((_ref3 = this.elseBodyNode()) != null ? _ref3.isStatement(o) : void 0);
     };
 
     If.prototype.jumps = function(o) {
-      var _ref2;
-      return this.body.jumps(o) || ((_ref2 = this.elseBody) != null ? _ref2.jumps(o) : void 0);
+      var _ref3;
+      return this.body.jumps(o) || ((_ref3 = this.elseBody) != null ? _ref3.jumps(o) : void 0);
     };
 
     If.prototype.compileNode = function(o) {
@@ -2486,7 +2587,7 @@
     };
 
     If.prototype.compileStatement = function(o) {
-      var body, bodyc, child, cond, exeq, ifPart, _ref2;
+      var body, bodyc, child, cond, exeq, ifPart, _ref3;
       child = del(o, 'chainChild');
       exeq = del(o, 'isExistentialEquals');
       if (exeq) {
@@ -2498,7 +2599,7 @@
       o.indent += TAB;
       body = this.ensureBlock(this.body);
       bodyc = body.compile(o);
-      if (1 === ((_ref2 = body.expressions) != null ? _ref2.length : void 0) && !this.elseBody && !child && bodyc && cond && -1 === (bodyc.indexOf('\n')) && 80 > cond.length + bodyc.length) {
+      if (1 === ((_ref3 = body.expressions) != null ? _ref3.length : void 0) && !this.elseBody && !child && bodyc && cond && -1 === (bodyc.indexOf('\n')) && 80 > cond.length + bodyc.length) {
         return "" + this.tab + "if (" + cond + ") " + (bodyc.replace(/^\s+/, ''));
       }
       if (bodyc) bodyc = "\n" + bodyc + "\n" + this.tab;
diff --git a/lib/coffee-script/optparse.js b/lib/coffee-script/optparse.js
index 71d90ebdef..58b9e4c290 100644
--- a/lib/coffee-script/optparse.js
+++ b/lib/coffee-script/optparse.js
@@ -14,7 +14,7 @@
     OptionParser.prototype.parse = function(args) {
       var arg, i, isOption, matchedRule, options, originalArgs, pos, rule, skippingArgument, value, _i, _j, _len, _len2, _ref;
       options = {
-        arguments: [],
+        "arguments": [],
         literals: []
       };
       skippingArgument = false;
@@ -28,7 +28,7 @@
         }
         if (arg === '--') {
           pos = originalArgs.indexOf('--');
-          options.arguments = [originalArgs[1 + pos]];
+          options["arguments"] = [originalArgs[1 + pos]];
           options.literals = originalArgs.slice(2 + pos);
           break;
         }
@@ -48,7 +48,7 @@
           throw new Error("unrecognized option: " + arg);
         }
         if (!isOption) {
-          options.arguments = originalArgs.slice(originalArgs.indexOf(arg));
+          options["arguments"] = originalArgs.slice(originalArgs.indexOf(arg));
           break;
         }
       }
diff --git a/lib/coffee-script/repl.js b/lib/coffee-script/repl.js
index 0cf7eccb49..e1d26e2a59 100644
--- a/lib/coffee-script/repl.js
+++ b/lib/coffee-script/repl.js
@@ -167,7 +167,7 @@
     backlog = '';
     try {
       _ = global._;
-      returnValue = CoffeeScript.eval("_=(" + code + "\n)", {
+      returnValue = CoffeeScript["eval"]("_=(" + code + "\n)", {
         filename: 'repl',
         modulename: 'repl'
       });
diff --git a/src/nodes.coffee b/src/nodes.coffee
index b9c8b52907..19ac3c52b6 100644
--- a/src/nodes.coffee
+++ b/src/nodes.coffee
@@ -786,7 +786,7 @@ exports.Obj = class Obj extends Base
       if prop?
         propName = prop.unwrapAll().value.toString()
         if propName in propNames
-          throw SyntaxError "duplicate data property #{propName} in object literals are not allowed"
+          throw SyntaxError "multiple object literal properties named \"#{propName}\""
         propNames.push propName
     return (if @front then '({})' else '{}') unless props.length
     if @generated
@@ -863,7 +863,7 @@ exports.Class = class Class extends Base
     else
       @variable.base.value
     if decl in STRICT_PROSCRIBED
-      throw SyntaxError 'variable name may not be eval or arguments'
+      throw SyntaxError "variable name may not be #{decl}"
     decl and= IDENTIFIER.test(decl) and decl
 
   # For all `this`-references and bound functions in the class definition,
@@ -992,8 +992,8 @@ exports.Assign = class Assign extends Base
   constructor: (@variable, @value, @context, options) ->
     @param = options and options.param
     @subpattern = options and options.subpattern
-    if @variable.unwrapAll().value in STRICT_PROSCRIBED
-      throw SyntaxError 'variable name may not be "eval" or "arguments"'
+    if name = @variable.unwrapAll().value in STRICT_PROSCRIBED
+      throw SyntaxError "variable name may not be \"#{name}\""
 
   children: ['variable', 'value']
 
@@ -1166,8 +1166,8 @@ exports.Code = class Code extends Base
     o.scope.shared  = del(o, 'sharedScope')
     o.indent        += TAB
     delete o.bare
-    params     = []
-    exprs      = []
+    params = []
+    exprs  = []
     for name in @paramNames() # this step must be performed before the others
       unless o.scope.check name then o.scope.parameter name
     for param in @params when param.splat
@@ -1228,8 +1228,8 @@ exports.Code = class Code extends Base
 # as well as be a splat, gathering up a group of parameters into an array.
 exports.Param = class Param extends Base
   constructor: (@name, @value, @splat) ->
-    if @name.unwrapAll().value in STRICT_PROSCRIBED
-      throw SyntaxError 'parameter name eval or arguments is not allowed'
+    if name = @name.unwrapAll().value in STRICT_PROSCRIBED
+      throw SyntaxError "parameter name \"#{name}\" is not allowed"
 
   children: ['name', 'value']
 
@@ -1582,7 +1582,7 @@ exports.Try = class Try extends Base
 
     catchPart = if @recovery
       if @error.value in STRICT_PROSCRIBED
-        throw SyntaxError "catch variable may not be eval or arguments"
+        throw SyntaxError "catch variable may not be \"#{@error.value}\""
       o.scope.add @error.value, 'param' unless o.scope.check @error.value
       " catch#{errorPart}{\n#{ @recovery.compile o, LEVEL_TOP }\n#{@tab}}"
     else unless @ensure or @recovery
diff --git a/test/strict.coffee b/test/strict.coffee
index 059b08e585..b5a27745a0 100644
--- a/test/strict.coffee
+++ b/test/strict.coffee
@@ -23,7 +23,7 @@ strictOk = (code, msg) ->
   doesNotThrow (-> CoffeeScript.compile code), msg
 
 
-test "Octal Integer Literals prohibited", ->
+test "octal integer literals prohibited", ->
   strict    '01'
   strict    '07777'
   # decimals with a leading '0' are also prohibited
@@ -31,7 +31,7 @@ test "Octal Integer Literals prohibited", ->
   strict    '079'
   strictOk  '`01`'
 
-test "Octal Escape Sequences prohibited", ->
+test "octal escape sequences prohibited", ->
   strict    '"\\0"'
   strict    '"\\7"'
   strict    '"\\000"'
@@ -47,7 +47,7 @@ test "Octal Escape Sequences prohibited", ->
   strictOk  "`'\\0'`"
   
 
-test "duplicate property definitions in `Object Literal`s are prohibited", ->
+test "duplicate property definitions in object literals are prohibited", ->
   strict 'o = {x:1,x:1}'
   strict 'x = 1; o = {x, x: 2}'