Added Dart API methods:

runtime/vm/dart_api_impl_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/builtin.h"
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
@@ skipping 6189 matching lines @@
   EXPECT_VALID(arg);
   Dart_SetReturnValue(args, Dart_NewInteger(1));
   Dart_ExitScope();
 }
 
 
 static void NativeFoo2(Dart_NativeArguments args) {
   Dart_EnterScope();
   intptr_t i = Dart_GetNativeArgumentCount(args);
   EXPECT_EQ(2, i);
-  Dart_Handle arg = Dart_GetNativeArgument(args, 1);
-  Dart_SetReturnValue(args, Dart_NewInteger(GetValue(arg)));
+  Dart_Handle arg1 = Dart_GetNativeArgument(args, 1);
+  EXPECT_VALID(arg1);
+  int64_t value = 0;
+  EXPECT_VALID(Dart_IntegerToInt64(arg1, &value));
+  int64_t integer_value = 0;
+  Dart_Handle result = Dart_GetNativeIntegerArgument(args,
+                                                     1,
+                                                     &integer_value);
+  EXPECT_VALID(result);
+  EXPECT_EQ(value, integer_value);
+  double double_value;
+  result = Dart_GetNativeDoubleArgument(args, 1, &double_value);
+  EXPECT_VALID(result);
+  bool bool_value;
+  result = Dart_GetNativeBooleanArgument(args, 1, &bool_value);
+  EXPECT(Dart_IsError(result));
+  Dart_SetReturnValue(args, Dart_NewInteger(GetValue(arg1)));
   Dart_ExitScope();
 }
 
 
 static void NativeFoo3(Dart_NativeArguments args) {
   Dart_EnterScope();
   intptr_t i = Dart_GetNativeArgumentCount(args);
   EXPECT_EQ(3, i);
   Dart_Handle arg1 = Dart_GetNativeArgument(args, 1);
   Dart_Handle arg2 = Dart_GetNativeArgument(args, 2);
@@ skipping 1072 matching lines @@
                                    NewString("main"),
                                    0,
                                    NULL);
   int64_t value = 0;
   result = Dart_IntegerToInt64(result, &value);
   EXPECT_VALID(result);
   EXPECT_EQ(8, value);
 }
 
 }  // namespace dart