Fix usage of changed function prototype


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17798 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/gccas/gccas.cpp b/tools/gccas/gccas.cpp
index 3fa0cfa..dd8b8e0 100644
--- a/tools/gccas/gccas.cpp
+++ b/tools/gccas/gccas.cpp
@@ -159,7 +159,7 @@
 
     // Make sure that the Out file gets unlinked from the disk if we get a
     // signal
-    sys::RemoveFileOnSignal(OutputFilename);
+    sys::RemoveFileOnSignal(sys::Path(OutputFilename));
   }