Expose SIMD.Float32x4 type to Javascript.

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index ba96ebdb7f9ec39f78773f1f14af4f4feeeb649d..66ca745120bd4001696462fec5478cce1370178c 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -554,6 +554,13 @@ namespace internal {
   F(Arguments, 1, 1)
 
 
+#define FOR_EACH_INTRINSIC_SIMD(F) \
+  F(CreateFloat32x4, 4, 1)         \
+  F(NewFloat32x4Wrapper, 1, 1)     \
+  F(Float32x4Check, 1, 1)          \
+  F(Float32x4ExtractLane, 2, 1)
+
+
 #define FOR_EACH_INTRINSIC_STRINGS(F)           \
   F(StringReplaceOneCharWithString, 3, 1)       \
   F(StringIndexOf, 3, 1)                        \
@@ -729,6 +736,7 @@ namespace internal {
   FOR_EACH_INTRINSIC_PROXY(F)               \
   FOR_EACH_INTRINSIC_REGEXP(F)              \
   FOR_EACH_INTRINSIC_SCOPES(F)              \
+  FOR_EACH_INTRINSIC_SIMD(F)                \
   FOR_EACH_INTRINSIC_STRINGS(F)             \
   FOR_EACH_INTRINSIC_SYMBOL(F)              \
   FOR_EACH_INTRINSIC_TEST(F)                \