Merge bleeding edge up to 8774 into the GC branch.

src/rewriter.cc

Index: src/rewriter.cc
===================================================================
--- src/rewriter.cc	(revision 8778)
+++ src/rewriter.cc	(working copy)
@@ -66,9 +66,13 @@
 
   Expression* SetResult(Expression* value) {
     result_assigned_ = true;
-    VariableProxy* result_proxy = new VariableProxy(result_);
-    return new Assignment(Token::ASSIGN, result_proxy, value,
-                          RelocInfo::kNoPosition);
+    Zone* zone = isolate()->zone();
+    VariableProxy* result_proxy = new(zone) VariableProxy(isolate(), result_);
+    return new(zone) Assignment(isolate(),
+                                Token::ASSIGN,
+                                result_proxy,
+                                value,
+                                RelocInfo::kNoPosition);
   }
 
   // Node visitors.
@@ -229,8 +233,10 @@
     if (processor.HasStackOverflow()) return false;
 
     if (processor.result_assigned()) {
-      VariableProxy* result_proxy = new VariableProxy(result);
-      body->Add(new ReturnStatement(result_proxy));
+      Isolate* isolate = info->isolate();
+      Zone* zone = isolate->zone();
+      VariableProxy* result_proxy = new(zone) VariableProxy(isolate, result);
+      body->Add(new(zone) ReturnStatement(result_proxy));
     }
   }