Implement crankshaft support for nested object literals.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 360384b478cbbccbec7e1adaf13b261b3524697d..32c3abfe7baa0b5f567478c08a3533e538151113 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -1792,7 +1792,12 @@ HType HArrayLiteral::CalculateInferredType() {
 }
 
 
-HType HObjectLiteral::CalculateInferredType() {
+HType HObjectLiteralFast::CalculateInferredType() {
+  return HType::JSObject();
+}
+
+
+HType HObjectLiteralGeneric::CalculateInferredType() {
   return HType::JSObject();
 }