Reland and fix "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 9deb71d0afeb9667a586c0600756d01be9db983c..adf0fb8703dc68800cf8b34fbf1624d71a70383f 100644
--- a/src/ast.cc
+++ b/src/ast.cc
@@ -776,7 +776,7 @@ 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());
@@ -803,6 +803,10 @@ 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);
+    }
   }
 }