Move include of <crtdbg.h> from d8.cc to platform-win32.cc

crtdbg.h provides the declarations for _CrtSetReportMode and the _CRT_*
constants. It should have moved in
https://chromium-review.googlesource.com/968244, but the MSVC C++
headers appear to include crtdbg.h transitively, so we only noticed this
on the libc++ Windows buildbot.

Tbr: mlippautz@chromium.org
Bug: chromium:801780
Change-Id: Ia07f6136e4b8d1f25014e00b0b9f662029ab5a2b
Reviewed-on: https://chromium-review.googlesource.com/981399
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52309}

src/base/platform/platform-win32.cc

@@ -27,6 +27,10 @@
 #include "src/base/timezone-cache.h"
 #include "src/base/utils/random-number-generator.h"
 
+#if defined(_MSC_VER)
+#include <crtdbg.h>  // NOLINT
+#endif               // defined(_MSC_VER)
+
 // Extra functions for MinGW. Most of these are the _s functions which are in
 // the Microsoft Visual Studio C++ CRT.
 #ifdef __MINGW32__

src/d8.cc

@@ -46,9 +46,6 @@
 #include <unistd.h>  // NOLINT
 #else
 #include <windows.h>  // NOLINT
-#if defined(_MSC_VER)
-#include <crtdbg.h>  // NOLINT
-#endif               // defined(_MSC_VER)
 #endif               // !defined(_WIN32) && !defined(_WIN64)
 
 #ifndef DCHECK