Added Crankshaft support for JavaScript getters.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 85977c132654265721d62de343a8fc3aacd8ac24..ac19db71fb6e7fb0f3b55edfbe93a9bffad8cabf 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -1138,6 +1138,11 @@ class HGraphBuilder: public AstVisitor {
                                    bool is_store,
                                    bool* has_side_effects);
 
+  HInstruction* BuildCallGetter(HValue* obj,
+                                Property* expr,
+                                Handle<Map> map,
+                                Handle<Object> callback,
+                                Handle<JSObject> holder);
   HInstruction* BuildLoadNamed(HValue* object,
                                Property* prop,
                                Handle<Map> map,