Revert of Remove SIMD.js from V8.

src/x87/interface-descriptors-x87.cc

Index: src/x87/interface-descriptors-x87.cc
diff --git a/src/x87/interface-descriptors-x87.cc b/src/x87/interface-descriptors-x87.cc
index de8ab58cd79de11fce26e6acb9a2cc5ea2dd8f6f..0c5f81adac35235ec3abbf222a5a00b01d8e9265 100644
--- a/src/x87/interface-descriptors-x87.cc
+++ b/src/x87/interface-descriptors-x87.cc
@@ -209,6 +209,14 @@
   data->InitializePlatformSpecific(0, nullptr, nullptr);
 }
 
+#define SIMD128_ALLOC_DESC(TYPE, Type, type, lane_count, lane_type) \
+  void Allocate##Type##Descriptor::InitializePlatformSpecific(      \
+      CallInterfaceDescriptorData* data) {                          \
+    data->InitializePlatformSpecific(0, nullptr, nullptr);          \
+  }
+SIMD128_TYPES(SIMD128_ALLOC_DESC)
+#undef SIMD128_ALLOC_DESC
+
 void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // register state