Implement Dump-on-DCHECK (via alternate DCHECK and DCHECK_OP macro implementations).

third_party/WebKit/Source/wtf/AssertionsTest.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "wtf/Assertions.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/text/StringBuilder.h"
 #include <stdio.h>
 
 namespace WTF {
 
 TEST(AssertionsTest, Assertions) {
   ASSERT(true);
-#if DCHECK_IS_ON()
+#if DCHECK_IS_ON() && !defined(DCHECK_IS_DUMP_WITHOUT_CRASH)
   EXPECT_DEATH_IF_SUPPORTED(ASSERT(false), "");
   EXPECT_DEATH_IF_SUPPORTED(ASSERT_NOT_REACHED(), "");
   EXPECT_DEATH_IF_SUPPORTED(DCHECK_AT(false, __FILE__, __LINE__), "");
 #else
   ASSERT(false);
   ASSERT_NOT_REACHED();
   DCHECK_AT(false, __FILE__, __LINE__);
 #endif
 
   RELEASE_ASSERT(true);
@@ skipping 44 matching lines @@
       "  ( c\n"
       "    ( d -1 hello )\n"
       "  )\n"
       "  a2 0.5\n"
       ")\n",
       gBuilder.toString());
 };
 #endif  // !LOG_DISABLED
 
 }  // namespace WTF