[wasm] Throw a type error if an I64 is exported to JS.

test/mjsunit/wasm/calls.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
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");
 
 function assertModule(module, memsize) {
@@ skipping 22 matching lines @@
   assertEquals("object", typeof module.exports);
 
   var exp = module.exports[func];
   assertFalse(exp === undefined);
   assertFalse(exp === null);
   assertFalse(exp === 0);
   assertEquals("function", typeof exp);
   return exp;
 }
 
-(function I64SubTest() {
-
-  var builder = new WasmModuleBuilder();
-
-  builder.addMemory(1, 1, true);
-  builder.addFunction("sub", kSig_l_ll)
-    .addBody([           // --
-      kExprGetLocal, 0,  // --
-      kExprGetLocal, 1,  // --
-      kExprI64Sub])      // --
-    .exportFunc()
-
-  var module = builder.instantiate();
-  assertModule(module, kPageSize);
-
-  // Check the properties of the sub function.
-  var sub = assertFunction(module, "sub");
-  assertEquals(-55, sub(33, 88));
-  assertEquals(-55555, sub(33333, 88888));
-  assertEquals(-5555555, sub(3333333, 8888888));
-})();
-
 (function SubTest() {
 
   var builder = new WasmModuleBuilder();
 
   builder.addMemory(1, 1, true);
   builder.addFunction("sub", kSig_i_ii)
     .addBody([
       kExprGetLocal, 0,             // --
       kExprGetLocal, 1,             // --
       kExprI32Sub,                  // --
@@ skipping 43 matching lines @@
     .exportFunc();
 
   var module = builder.instantiate();
   assertModule(module, kPageSize * kPages);
 
   var flt = assertFunction(module, "flt");
   assertEquals(1, flt(-2, -1));
   assertEquals(0, flt(7.3, 7.1));
   assertEquals(1, flt(7.1, 7.3));
 })();