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

test/mjsunit/wasm/wasm-constants.js

 // 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.
 
 // Flags: --expose-wasm
 
 function bytes() {
   var buffer = new ArrayBuffer(arguments.length);
   var view = new Uint8Array(buffer);
   for (var i = 0; i < arguments.length; i++) {
@@ skipping 131 matching lines @@
 var kExprI32Const = 0x10;
 var kExprI64Const = 0x11;
 var kExprF64Const = 0x12;
 var kExprF32Const = 0x13;
 var kExprGetLocal = 0x14;
 var kExprSetLocal = 0x15;
 var kExprCallFunction = 0x16;
 var kExprCallIndirect = 0x17;
 var kExprCallImport = 0x18;
 var kExprI8Const = 0xcb;
-var kExprLoadGlobal = 0xcc;
-var kExprStoreGlobal = 0xcd;
+var kExprGetGlobal = 0xbb;
+var kExprSetGlobal = 0xbc;
 
 var kExprI32LoadMem8S = 0x20;
 var kExprI32LoadMem8U = 0x21;
 var kExprI32LoadMem16S = 0x22;
 var kExprI32LoadMem16U = 0x23;
 var kExprI64LoadMem8S = 0x24;
 var kExprI64LoadMem8U = 0x25;
 var kExprI64LoadMem16S = 0x26;
 var kExprI64LoadMem16U = 0x27;
 var kExprI64LoadMem32S = 0x28;
@@ skipping 178 matching lines @@
       }
       threwException = false;
     } catch (e) {
       assertEquals("object", typeof e);
       assertEquals(kTrapMsgs[trap], e.message);
       // Success.
       return;
     }
     throw new MjsUnitAssertionError("Did not trap, expected: " + kTrapMsgs[trap]);
 }