Do not use _CrtDbgReport() if NO_CRTDBGREPORT macro defined (MSVC/debug)

Issue #635 (bdwgc).

* misc.c [(MSWIN32 && !CONSOLE_LOG || MSWINCE) && _MSC_VER && _DEBUG
&& !NO_CRT && MSWINCE] (GC_write): Do not call MultiByteToWideChar()
and OutputDebugStringW() if NO_CRTDBGREPORT is defined.
* misc.c [(MSWIN32 && !CONSOLE_LOG || MSWINCE) && _MSC_VER && _DEBUG
&& !NO_CRT && !MSWINCE] (GC_write): Do not call _CrtDbgReport()
if NO_CRTDBGREPORT is defined.

misc.c

@@ -1754,7 +1754,8 @@ GC_API void GC_CALL GC_start_mark_threads(void)
 #       endif
       }
       res = WriteFile(GC_log, buf, (DWORD)len, &written, NULL);
-#     if defined(_MSC_VER) && defined(_DEBUG) && !defined(NO_CRT)
+#     if defined(_MSC_VER) && defined(_DEBUG) && !defined(NO_CRT) \
+         && !defined(NO_CRTDBGREPORT)
 #         ifdef MSWINCE
               /* There is no CrtDbgReport() in WinCE */
               {