1946: Run function definition broken

Equals (=) was not being tokenized as an operator which caused us to miss "foo = function() {}" types of definitions

src/gwt/acesupport/acemode/r_highlight_rules.js

@@ -103,7 +103,7 @@ define("mode/r_highlight_rules", function(require, exports, module)
             },
             {
                token : "keyword.operator",
-               regex : "%%|>=|<=|==|!=|\\->|<\\-|\\+|\\-|\\*|/|\\^|>|<|!|&|\\||~|\\$|:"
+               regex : "%%|>=|<=|==|!=|\\->|<\\-|\\|\\||&&|=|\\+|\\-|\\*|/|\\^|>|<|!|&|\\||~|\\$|:"
             },
             {
                token : "keyword.operator", // infix operators