[wasm] Enable more ASM->WASM tests.

test/mjsunit/wasm/asm-wasm-literals.js

 // Copyright 2016 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 RunThreeWayTest(asmfunc, expect) {
   var asm_source = asmfunc.toString();
   var nonasm_source = asm_source.replace(new RegExp("use asm"), "");
   var stdlib = {Math: Math};
@@ skipping 113 matching lines @@
     return +(x >>> 0);
   }
   function e() {
     var x = 0xffffffff;
     return +(x >>> 0);
   }
   return {a: a, b: b, c: c, d: d, e: e};
 }
 
 RunThreeWayTest(LargeUnsignedLiterals, function(module) {
-  return; // TODO(bradnelson): unsigned literals are broken!
   assertEquals(2147483648, module.a());
   assertEquals(2147483649, module.b());
   assertEquals(0x80000000, module.c());
   assertEquals(0x80000001, module.d());
   assertEquals(0xffffffff, module.e());
 });
 
 function ManyI32() {
   "use asm";
   function main() {
@@ skipping 108 matching lines @@
   // TODO(bradnelson): fails validation of F32 literals somehow.
 RunThreeWayTest(ManyF32a, function(module) {
   assertEquals(2.0999999917333043e-24, module.k1());
   assertEquals(2.099999868734112e-19, module.k2());
   assertEquals(2.099999997029825e-14, module.k3());
   assertEquals(2.099999951710174e-9, module.k4());
   assertEquals(0.0002099999983329326, module.k5());
   assertEquals(21.399999618530273, module.k6());
 });
 }