vcruntime140_1: Add __CxxFrameHandler4 stub.

dlls/vcruntime140_1/Makefile.in

 MODULE = vcruntime140_1.dll
+
+EXTRADLLFLAGS = -mno-cygwin
+
+C_SRCS = \
+	except_x86_64.c

dlls/vcruntime140_1/except_x86_64.c

+/*
+ * C++ exception handling (ver. 4)
+ *
+ * Copyright 2020 Piotr Caban
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifdef __x86_64__
+
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(seh);
+
+EXCEPTION_DISPOSITION __cdecl __CxxFrameHandler4(EXCEPTION_RECORD *rec,
+        ULONG64 frame, CONTEXT *context, DISPATCHER_CONTEXT *dispatch)
+{
+    FIXME("%p %lx %p %p\n", rec, frame, context, dispatch);
+    return ExceptionContinueSearch;
+}
+
+#endif

dlls/vcruntime140_1/vcruntime140_1.spec

-@ stub -arch=x86_64 __CxxFrameHandler4
+@ cdecl -arch=x86_64 __CxxFrameHandler4(ptr long ptr ptr)
 @ stub -arch=x86_64 __NLG_Dispatch2
 @ stub -arch=x86_64 __NLG_Return2