[wasm][asm.js] Fix and enable several asm.js tests with the new parser.

test/mjsunit/wasm/test-wasm-compilation-control.js

 // Copyright 2017 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: --allow-natives-syntax --validate-asm
+// Flags: --allow-natives-syntax --validate-asm --fast-validate-asm
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");
 
 let buffer = (() => {
   var builder = new WasmModuleBuilder();
   builder.addFunction("f", kSig_i_v)
     .addBody([kExprI32Const, 42])
     .exportAs("f");
   return builder.toBuffer();
@@ skipping 93 matching lines @@
 function TestAsmWasmIsUnaffected() {
   "use asm";
   function caller() {
     return 43;
   }
 
   return {caller: caller};
 }
 
 assertWasm(43, TestAsmWasmIsUnaffected);