Revert of Remove SIMD.js from V8.

src/mips64/interface-descriptors-mips64.cc

Index: src/mips64/interface-descriptors-mips64.cc
diff --git a/src/mips64/interface-descriptors-mips64.cc b/src/mips64/interface-descriptors-mips64.cc
index 5ce2bb0a4d29fe29b474782273034a5cc1efe26c..adb575b07c765c796af5eae2f6bce8d5e8687eb2 100644
--- a/src/mips64/interface-descriptors-mips64.cc
+++ b/src/mips64/interface-descriptors-mips64.cc
@@ -196,6 +196,14 @@
   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 ArrayConstructorDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // kTarget, kNewTarget, kActualArgumentsCount, kAllocationSite