[wasm] Turn on all wasm instructions on 64bit platforms.

src/wasm/wasm-opcodes.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/wasm/wasm-opcodes.h"
 #include "src/signature.h"
 
 namespace v8 {
 namespace internal {
 namespace wasm {
@@ skipping 97 matching lines @@
     case kExprI64ReinterpretF64:
 
     case kExprI64Clz:
     case kExprI64Ctz:
     case kExprI64Popcnt:
 
     case kExprF32SConvertI64:
     case kExprF32UConvertI64:
     case kExprF64SConvertI64:
     case kExprF64UConvertI64:
-
-#endif
-
     case kExprI64SConvertF32:
     case kExprI64SConvertF64:
     case kExprI64UConvertF32:
     case kExprI64UConvertF64:
+
+#endif
       return false;
     default:
       return true;
   }
 }
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8