Remove STL use from platform/assert.cc

runtime/vm/assert_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 "platform/assert.h"
 #include "vm/unit_test.h"
 
 
 UNIT_TEST_CASE(Assert) {
   ASSERT(true);
@@ skipping 28 matching lines @@
   EXPECT_GT(4, 1);
   EXPECT_GT(2.3, 2.2229);
 
   EXPECT_GE(4, 4);
   EXPECT_GE(15.3, 15.3);
   EXPECT_GE(5, 3);
 
   EXPECT_FLOAT_EQ(15.43, 15.44, 0.01);
   EXPECT_FLOAT_EQ(1.43, 1.43, 0.00);
 }
+
+
+UNIT_TEST_CASE(Fail0) {
+  FAIL("This test fails");
+}
+
+
+UNIT_TEST_CASE(Fail1) {
+  FAIL1("This test fails with one argument: %d", 4);
+}
+
+
+UNIT_TEST_CASE(Fail2) {
+  FAIL2("This test fails with two arguments: %d, %d", -100, 42);
+}