[wasm] Make LoadGlobal/StoreGlobal opcodes match what is coming in binary 0xC.

test/cctest/wasm/test-run-wasm-module.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 <stdlib.h>
 #include <string.h>
 
 #include "src/wasm/encoder.h"
 #include "src/wasm/wasm-js.h"
 #include "src/wasm/wasm-macro-gen.h"
@@ skipping 144 matching lines @@
   Zone zone(&allocator);
   TestSignatures sigs;
 
   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   uint32_t global1 = builder->AddGlobal(kAstI32, 0);
   uint32_t global2 = builder->AddGlobal(kAstI32, 0);
   uint16_t f1_index = builder->AddFunction();
   WasmFunctionBuilder* f = builder->FunctionAt(f1_index);
   f->SetSignature(sigs.i_v());
   byte code1[] = {
-      WASM_I32_ADD(WASM_LOAD_GLOBAL(global1), WASM_LOAD_GLOBAL(global2))};
+      WASM_I32_ADD(WASM_GET_GLOBAL(global1), WASM_GET_GLOBAL(global2))};
   f->EmitCode(code1, sizeof(code1));
   uint16_t f2_index = builder->AddFunction();
   f = builder->FunctionAt(f2_index);
   f->SetSignature(sigs.i_v());
   ExportAsMain(f);
-  byte code2[] = {WASM_STORE_GLOBAL(global1, WASM_I32V_1(56)),
-                  WASM_STORE_GLOBAL(global2, WASM_I32V_1(41)),
+  byte code2[] = {WASM_SET_GLOBAL(global1, WASM_I32V_1(56)),
+                  WASM_SET_GLOBAL(global2, WASM_I32V_1(41)),
                   WASM_RETURN1(WASM_CALL_FUNCTION0(f1_index))};
   f->EmitCode(code2, sizeof(code2));
   TestModule(&zone, builder, 97);
 }