Add llvm::sys::RunInterruptHandlers(), which runs the registered SIGINT cleanup
stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103333 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Unix/Signals.inc b/lib/System/Unix/Signals.inc
index 56bf9e7..9548816 100644
--- a/lib/System/Unix/Signals.inc
+++ b/lib/System/Unix/Signals.inc
@@ -152,7 +152,9 @@
     CallBacksToRun[i].first(CallBacksToRun[i].second);
 }
 
-
+void llvm::sys::RunInterruptHandlers() {
+  SignalHandler(SIGINT);
+}
 
 void llvm::sys::SetInterruptFunction(void (*IF)()) {
   SignalsMutex.acquire();