Build fast literals in hydrogen.

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index 9e3e836ed45823fe7cdee16e0fcd7f8eb187c0c2..acb2ecd23c288bc765cacd07d62172c50eb2fbcd 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -97,7 +97,6 @@ class LCodeGen;
   V(DoubleToI)                                  \
   V(DummyUse)                                   \
   V(ElementsKind)                               \
-  V(FastLiteral)                                \
   V(FixedArrayBaseLength)                       \
   V(MapEnumLength)                              \
   V(FunctionLiteral)                            \
@@ -2281,13 +2280,6 @@ class LAllocate: public LTemplateInstruction<1, 1, 1> {
 };
 
 
-class LFastLiteral: public LTemplateInstruction<1, 0, 0> {
- public:
-  DECLARE_CONCRETE_INSTRUCTION(FastLiteral, "fast-literal")
-  DECLARE_HYDROGEN_ACCESSOR(FastLiteral)
-};
-
-
 class LArrayLiteral: public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(ArrayLiteral, "array-literal")