Fix test added in r211610 so it doesn't race on output file creation.

llvm-svn: 211615
diff --git a/clang/test/Frontend/optimization-remark.c b/clang/test/Frontend/optimization-remark.c
index 15b8f36..a092108 100644
--- a/clang/test/Frontend/optimization-remark.c
+++ b/clang/test/Frontend/optimization-remark.c
@@ -5,7 +5,7 @@
 
 // RUN: %clang_cc1 %s -Rpass=inline -Rpass-analysis=inline -Rpass-missed=inline -O0 -emit-llvm-only -verify
 // RUN: %clang_cc1 %s -DNDEBUG -Rpass=inline -emit-llvm-only -verify
-// RUN: %clang_cc1 %s -Rpass=inline -emit-llvm -o %t 2>/dev/null | FileCheck %s < %t
+// RUN: %clang_cc1 %s -Rpass=inline -emit-llvm -o - 2>/dev/null | FileCheck %s
 
 // -Rpass should produce source location annotations, exclusively (just
 // like -gmlt).