Configure d8 & cctest to suppress Windows error dialogs.

test/cctest/cctest.cc

Index: test/cctest/cctest.cc
diff --git a/test/cctest/cctest.cc b/test/cctest/cctest.cc
index 2bb08b0ec946ff517371054ef656a56ff6ab6ea3..6fb831a681a8c054543514456c668bc4048cdc70 100644
--- a/test/cctest/cctest.cc
+++ b/test/cctest/cctest.cc
@@ -34,6 +34,10 @@
 #include "test/cctest/profiler-extension.h"
 #include "test/cctest/trace-extension.h"
 
+#if (defined(_WIN32) || defined(_WIN64))
+#include <windows.h>  // NOLINT
+#endif
+
 enum InitializationState {kUnset, kUnintialized, kInitialized};
 static InitializationState initialization_state_  = kUnset;
 static bool disable_automatic_dispose_ = false;
@@ -138,6 +142,20 @@ static void SuggestTestHarness(int tests) {
 
 
 int main(int argc, char* argv[]) {
+#if (defined(_WIN32) || defined(_WIN64))
+  UINT new_flags =
+      SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX | SEM_NOOPENFILEERRORBOX;
+  UINT existing_flags = SetErrorMode(new_flags);
+  SetErrorMode(existing_flags | new_flags);
+  _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_DEBUG | _CRTDBG_MODE_FILE);
+  _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
+  _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG | _CRTDBG_MODE_FILE);
+  _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);
+  _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_DEBUG | _CRTDBG_MODE_FILE);
+  _CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR);
+  _set_error_mode(_OUT_TO_STDERR);
+#endif
+
   v8::V8::InitializeICU();
   v8::Platform* platform = v8::platform::CreateDefaultPlatform();
   v8::V8::InitializePlatform(platform);