Introduce FLAG_vector_ics.

src/full-codegen.h

Index: src/full-codegen.h
diff --git a/src/full-codegen.h b/src/full-codegen.h
index 8f64340f2eb81092fb8f5124cb39afe5428472db..6ca19ac794ed75398eb581970653e0ca7c2a900c 100644
--- a/src/full-codegen.h
+++ b/src/full-codegen.h
@@ -485,11 +485,11 @@ class FullCodeGenerator: public AstVisitor {
                            JSGeneratorObject::ResumeMode resume_mode);
 
   // Platform-specific code for loading variables.
-  void EmitLoadGlobalCheckExtensions(Variable* var,
+  void EmitLoadGlobalCheckExtensions(VariableProxy* proxy,
                                      TypeofState typeof_state,
                                      Label* slow);
   MemOperand ContextSlotOperandCheckExtensions(Variable* var, Label* slow);
-  void EmitDynamicLookupFastCase(Variable* var,
+  void EmitDynamicLookupFastCase(VariableProxy* proxy,
                                  TypeofState typeof_state,
                                  Label* slow,
                                  Label* done);