fix circular member expression bug

src/ast/nodes/MemberExpression.ts

@@ -69,6 +69,7 @@ export default class MemberExpression extends NodeBase {
 	private arePropertyReadSideEffectsChecked: boolean;
 
 	bind() {
+		this.isBound = true;
 		const path = getPathIfNotComputed(this);
 		const baseVariable = path && this.scope.findVariable(path[0].key);
 		if (baseVariable && isNamespaceVariable(baseVariable)) {
@@ -86,7 +87,6 @@ export default class MemberExpression extends NodeBase {
 		} else {
 			this.bindChildren();
 		}
-		this.isBound = true;
 	}
 
 	private resolveNamespaceVariables(

test/form/samples/circular-member-expression/_config.js

@@ -0,0 +1,3 @@
+module.exports = {
+	description: 'circular member expression'
+};

test/form/samples/circular-member-expression/_expected/amd.js

@@ -0,0 +1,9 @@
+define(function () { 'use strict';
+
+  var foo = function() {
+    foo.toString = null;
+  }.toString();
+
+  console.log(foo);
+
+});

test/form/samples/circular-member-expression/_expected/cjs.js

@@ -0,0 +1,7 @@
+'use strict';
+
+var foo = function() {
+  foo.toString = null;
+}.toString();
+
+console.log(foo);

test/form/samples/circular-member-expression/_expected/es.js

@@ -0,0 +1,5 @@
+var foo = function() {
+  foo.toString = null;
+}.toString();
+
+console.log(foo);

test/form/samples/circular-member-expression/_expected/iife.js

@@ -0,0 +1,10 @@
+(function () {
+  'use strict';
+
+  var foo = function() {
+    foo.toString = null;
+  }.toString();
+
+  console.log(foo);
+
+}());

test/form/samples/circular-member-expression/_expected/system.js

@@ -0,0 +1,14 @@
+System.register([], function (exports, module) {
+  'use strict';
+  return {
+    execute: function () {
+
+      var foo = function() {
+        foo.toString = null;
+      }.toString();
+
+      console.log(foo);
+
+    }
+  };
+});

test/form/samples/circular-member-expression/_expected/umd.js

@@ -0,0 +1,13 @@
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  (factory());
+}(this, (function () { 'use strict';
+
+  var foo = function() {
+    foo.toString = null;
+  }.toString();
+
+  console.log(foo);
+
+})));

test/form/samples/circular-member-expression/main.js

@@ -0,0 +1,5 @@
+var foo = function() {
+  foo.toString = null;
+}.toString();
+
+console.log(foo);