Make Dart_Invoke work for private static functions

runtime/vm/dart_api_impl_test.cc

Index: runtime/vm/dart_api_impl_test.cc
diff --git a/runtime/vm/dart_api_impl_test.cc b/runtime/vm/dart_api_impl_test.cc
index 2247055bee6a3ad1aaa8047ce8df1582e48df3ef..9ffc1d6442b0a87878f836ebc72777e1da7a07b1 100644
--- a/runtime/vm/dart_api_impl_test.cc
+++ b/runtime/vm/dart_api_impl_test.cc
@@ -5151,6 +5151,32 @@ TEST_CASE(Invoke) {
 }
 
 
+TEST_CASE(Invoke_PrivateStatic) {
+  const char* kScriptChars =
+      "class Methods {\n"
+      "  static _staticMethod(arg) => 'hidden static $arg';\n"
+      "}\n"
+      "\n";
+
+  // Shared setup.
+  Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
+  Dart_Handle type = Dart_GetType(lib, NewString("Methods"), 0, NULL);
+  Dart_Handle result;
+  EXPECT_VALID(type);
+  Dart_Handle name = NewString("_staticMethod");
+  EXPECT_VALID(name);
+
+  Dart_Handle args[1];
+  args[0] = NewString("!!!");
+  result = Dart_Invoke(type, name, 1, args);
+  EXPECT_VALID(result);
+
+  const char* str = NULL;
+  result = Dart_StringToCString(result, &str);
+  EXPECT_STREQ("hidden static !!!", str);
+}
+
+
 TEST_CASE(Invoke_FunnyArgs) {
   const char* kScriptChars =
       "test(arg) => 'hello $arg';\n";