[V8] Rename SIMD Create methods and add initialization operators.

src/wasm/function-body-decoder.cc

Index: src/wasm/function-body-decoder.cc
diff --git a/src/wasm/function-body-decoder.cc b/src/wasm/function-body-decoder.cc
index dc2f83b459d2cfc0966312661d5210a89a6f02cb..92a84ac27072fd7cf7a768bb2da26f4fe52ed41b 100644
--- a/src/wasm/function-body-decoder.cc
+++ b/src/wasm/function-body-decoder.cc
@@ -660,7 +660,13 @@ class WasmFullDecoder : public WasmDecoder {
       case kWasmF64:
         return builder_->Float64Constant(0);
       case kWasmS128:
-        return builder_->CreateS128Value(0);
+        return builder_->Simd128Zero();
+      case kWasmS1x4:
+        return builder_->Simd1x4Zero();
+      case kWasmS1x8:
+        return builder_->Simd1x8Zero();
+      case kWasmS1x16:
+        return builder_->Simd1x16Zero();
       default:
         UNREACHABLE();
         return nullptr;