Initial import of v8-native WASM.

test/mjsunit/wasm/unreachable.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.
+
+load("test/mjsunit/wasm/wasm-constants.js");
+
+var module = (function () {
+  var kFuncWithBody = 9;
+  var kFuncImported = 7;
+  var kBodySize1 = 1;
+  var kMainOffset = 6 + kFuncWithBody + kBodySize1 + 1;
+
+  var ffi = new Object();
+  ffi.add = (function(a, b) { return a + b | 0; });
+
+  return WASM.instantiateModule(bytes(
+    // -- signatures
+    kDeclSignatures, 1,
+    0, kAstStmt, // void -> void
+    // -- function #0 (unreachable)
+    kDeclFunctions, 1,
+    kDeclFunctionName | kDeclFunctionExport,
+    0, 0,                      // signature offset
+    kMainOffset, 0, 0, 0,      // name offset
+    kBodySize1, 0,             // body size
+    kExprUnreachable,
+    kDeclEnd,
+    'm', 'a', 'i', 'n', 0      // name
+  ), ffi);
+})();
+
+// Check the module exists.
+assertFalse(module === undefined);
+assertFalse(module === null);
+assertFalse(module === 0);
+assertEquals("object", typeof module);
+assertEquals("function", typeof module.main);
+
+var exception = "";
+try {
+    assertEquals(0, module.main());
+} catch(e) {
+    print("correctly caught: " + e);
+    exception = e;
+}
+assertEquals("unreachable", exception);