Add a test of depot across an asm.js -> wasm module.

test/mjsunit/wasm/asm-wasm-deopt.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
+// Flags: --allow-natives-syntax
+
+(function TestDeoptimizeArgMismatch() {
+  function deopt() {
+    %DeoptimizeFunction(test);
+  }
+  function Module(global, env, buffer) {
+    "use asm";
+    var deopt = env.deopt;
+    function _main(i4, i5) {
+      i4 = i4 | 0;
+      i5 = i5 | 0;
+      deopt();
+      return i5 | 0;
+    }
+    return {'_main': _main}
+  }
+  function test() {
+    var wasm = Wasm.instantiateModuleFromAsm(
+       Module.toString(), {'deopt': deopt});
+    wasm._main(0, 0, 0);
+  }
+  test();
+})();