Convert FastNewClosureStub into hydrogen.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index b0045b8751b06258f0a241416e54615924ea910f..9603d5bd2addba6849e786ba0234f03709325745 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -3861,6 +3861,15 @@ HObjectAccess HObjectAccess::ForJSObjectOffset(int offset,
 }
 
 
+HObjectAccess HObjectAccess::ForContextSlot(int index) {
+  ASSERT(index >= 0);
+  Portion portion = kInobject;
+  // Context::SlotOffset(index)

[Michael Starzinger, 2013/08/27 08:12:51]

Instead of the comment, lets add an assert that the result of your computation
is actually correct ...

ASSERT_EQ(offset, Context::SlotOffset(index) + kHeapObjectTag);

[mvstanton, 2013/08/27 09:23:04]

Done.

+  int offset = Context::kHeaderSize + index * kPointerSize;
+  return HObjectAccess(portion, offset, Representation::Tagged());
+}
+
+
 HObjectAccess HObjectAccess::ForJSArrayOffset(int offset) {
   ASSERT(offset >= 0);
   Portion portion = kInobject;