First simple implementation of for-of in TurboFan.

src/compiler/control-builders.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "control-builders.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
@@ skipping 55 matching lines @@
 void LoopBuilder::BreakUnless(Node* condition) {
   IfBuilder control_if(builder_);
   control_if.If(condition);
   control_if.Then();
   control_if.Else();
   Break();
   control_if.End();
 }
 
 
+void LoopBuilder::BreakWhen(Node* condition) {
+  IfBuilder control_if(builder_);
+  control_if.If(condition);
+  control_if.Then();
+  Break();
+  control_if.Else();
+  control_if.End();
+}
+
+
 void SwitchBuilder::BeginSwitch() {
   body_environment_ = environment()->CopyAsUnreachable();
   label_environment_ = environment()->CopyAsUnreachable();
   break_environment_ = environment()->CopyAsUnreachable();
 }
 
 
 void SwitchBuilder::BeginLabel(int index, Node* condition) {
   builder_->NewBranch(condition);
   label_environment_ = environment()->CopyForConditional();
@@ skipping 47 matching lines @@
 }
 
 
 void BlockBuilder::EndBlock() {
   break_environment_->Merge(environment());
   set_environment(break_environment_);
 }
 }
 }
 }  // namespace v8::internal::compiler