Load closure from activation for building literals.

src/compiler/pipeline.h

Index: src/compiler/pipeline.h
diff --git a/src/compiler/pipeline.h b/src/compiler/pipeline.h
index 9f8241a63c4ee4984f2f261f333a6447ce849c09..fce0952c4170b9b213fe1154c0416fee1295a990 100644
--- a/src/compiler/pipeline.h
+++ b/src/compiler/pipeline.h
@@ -24,7 +24,8 @@ class Linkage;
 
 class Pipeline {
  public:
-  explicit Pipeline(CompilationInfo* info) : info_(info) {}
+  explicit Pipeline(CompilationInfo* info)
+      : info_(info), context_specialization_(FLAG_context_specialization) {}
 
   // Run the entire pipeline and generate a handle to a code object.
   Handle<Code> GenerateCode();
@@ -39,9 +40,14 @@ class Pipeline {
 
   static void SetUp();
   static void TearDown();
+  bool context_specialization() { return context_specialization_; }
+  void set_context_specialization(bool context_specialization) {
+    context_specialization_ = context_specialization;
+  }
 
  private:
   CompilationInfo* info_;
+  bool context_specialization_;
 
   CompilationInfo* info() const { return info_; }
   Isolate* isolate() { return info_->isolate(); }