Add Value::Is* methods for typed arrays and ArrayBuffer

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index d0b986b796e61f1c2a4e90d9e3fb930e3b2ac881..3036e883009b4cc6e00f8589da9b92185708d122 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -15173,6 +15173,31 @@ THREADED_TEST(Float64Array) {
       v8::kExternalDoubleArray, -500, 500);
 }
 
+#define IS_TYPED_ARRAY_TEST(TypedArray) \
+  THREADED_TEST(Is##TypedArray) {                                             \
+    i::FLAG_harmony_typed_arrays = true;                                      \
+    LocalContext env;                                                         \
+    v8::Isolate* isolate = env->GetIsolate();                                 \
+    v8::HandleScope handle_scope(isolate);                                    \
+                                                                              \
+    Handle<Value> result = CompileRun(                                        \
+        "var ab = new ArrayBuffer(128);"                                      \
+        "new " #TypedArray "(ab)");                                           \
+    CHECK(result->Is##TypedArray());                                          \
+  }
+
+IS_TYPED_ARRAY_TEST(Uint8Array)
+IS_TYPED_ARRAY_TEST(Int8Array)
+IS_TYPED_ARRAY_TEST(Uint16Array)
+IS_TYPED_ARRAY_TEST(Int16Array)
+IS_TYPED_ARRAY_TEST(Uint32Array)
+IS_TYPED_ARRAY_TEST(Int32Array)
+IS_TYPED_ARRAY_TEST(Float32Array)
+IS_TYPED_ARRAY_TEST(Float64Array)
+
+#undef IS_TYPED_ARRAY_TEST
+
+
 
 THREADED_TEST(ScriptContextDependence) {
   LocalContext c1;