Merge branch 'master' into harmony-v3.3.8

lib/parse.js

@@ -1276,12 +1276,10 @@ function parse($TEXT, options) {
     };
 
     function for_in(init) {
-        var lhs = init instanceof AST_Definitions ? init.definitions[0].name : null;
         var obj = expression(true);
         expect(")");
         return new AST_ForIn({
             init   : init,
-            name   : lhs,
             object : obj,
             body   : in_loop(statement)
         });
@@ -2226,7 +2224,7 @@ function parse($TEXT, options) {
             a.push(new AST_ObjectKeyVal({
                 start: start,
                 quote: start.quote,
-                key: name,
+                key: name instanceof AST_Node ? name : "" + name,
                 value: value,
                 end: prev()
             }));
@@ -2283,7 +2281,7 @@ function parse($TEXT, options) {
             if (typeof name === "string" || typeof name === "number") {
                 return new AST_SymbolMethod({
                     start: token,
-                    name: name,
+                    name: "" + name,
                     end: prev()
                 });
             } else if (name === null) {