Make HToFastProperties GC safe.

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 257233b0f6a87e676b023fe9793e9f310fde83c6..b6ab4548acf1b6d8cbc164050cc35349a4c1b5fc 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -6550,8 +6550,9 @@ class HToFastProperties: public HUnaryOperation {
 
  private:
   explicit HToFastProperties(HValue* value) : HUnaryOperation(value) {
-    // This instruction is not marked as having side effects, but
-    // changes the map of the input operand. Use it only when creating
+    SetFlag(kChangesNewSpacePromotion);

[Michael Starzinger, 2013/08/13 16:21:52]

This should be s/SetFlag/SetGVNFlag/ here. Also for consistency, can we move it
to the bottom of the constructor?

+    // This instruction is not marked as kChangesMaps, but does
+    // change the map of the input operand. Use it only when creating
     // object literals via a runtime call.
     ASSERT(value->IsCallRuntime());
 #ifdef DEBUG