Add Simd128Value code stubs.

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index 4e5efcd8e02bd115a9c303cba78619d552a07198..2cfbe836aa0aba2260a7f90431516ed725aeae2d 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -732,13 +732,20 @@ void AllocateMutableHeapNumberStub::InitializeDescriptor(
   descriptor->Initialize();
 }
 
+#define SIMD128_INIT_DESC(TYPE, Type, type, lane_count, lane_type) \
+  void Allocate##Type##Stub::InitializeDescriptor(                 \
+      CodeStubDescriptor* descriptor) {                            \
+    descriptor->Initialize(                                        \
+        Runtime::FunctionForId(Runtime::kCreate##Type)->entry);    \
+  }
+SIMD128_TYPES(SIMD128_INIT_DESC)
+#undef SIMD128_INIT_DESC
 
 void AllocateInNewSpaceStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   descriptor->Initialize();
 }
 
-
 void CompareNilICStub::InitializeDescriptor(CodeStubDescriptor* descriptor) {
   descriptor->Initialize(FUNCTION_ADDR(Runtime_CompareNilIC_Miss));
   descriptor->SetMissHandler(ExternalReference(