Add support for keyed-call on arrays of fast elements

src/ast.cc

Index: src/ast.cc
diff --git a/src/ast.cc b/src/ast.cc
index 5f085d358812bde87e35eb8411ff9d0f76d06979..25893b8683bbe7d747f5c3ddcf65fced47ec4651 100644
--- a/src/ast.cc
+++ b/src/ast.cc
@@ -638,7 +638,7 @@ void Call::RecordTypeFeedback(TypeFeedbackOracle* oracle,
   if (property == NULL) {
     // Function call.  Specialize for monomorphic calls.
     if (is_monomorphic_) target_ = oracle->GetCallTarget(this);
-  } else {
+  } else if (property->key()->IsPropertyName()) {
     // Method call.  Specialize for the receiver types seen at runtime.
     Literal* key = property->key()->AsLiteral();
     ASSERT(key != NULL && key->value()->IsString());
@@ -665,6 +665,10 @@ void Call::RecordTypeFeedback(TypeFeedbackOracle* oracle,
       Handle<Map> map = receiver_types_.first();
       is_monomorphic_ = ComputeTarget(map, name);
     }
+  } else {
+    if (is_monomorphic_) {
+      keyed_array_call_is_holey_ = oracle->KeyedArrayCallIsHoley(this);
+    }
   }
 }