[Sanitizer] make internal_open have the same interface as libc version

llvm-svn: 174187
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_win.cc b/compiler-rt/lib/sanitizer_common/sanitizer_win.cc
index 2ae37af..43c6fa9 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_win.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_win.cc
@@ -191,7 +191,15 @@
   return _isatty(fd);
 }
 
-fd_t internal_open(const char *filename, bool write) {
+fd_t internal_open(const char *filename, int flags) {
+  UNIMPLEMENTED();
+}
+
+fd_t internal_open(const char *filename, int flags, mode_t mode) {
+  UNIMPLEMENTED();
+}
+
+fd_t OpenFile(const char *filename, bool write) {
   UNIMPLEMENTED();
 }