[tooling] Make compile_flags.txt negative test more hermetic

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318154 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Tooling/fixed-database.cpp b/test/Tooling/fixed-database.cpp
index e0cdb1e51e477a8231e85843c0b2ddd5893e8063..73d0779258b219e874350c85638e88670c6e927b 100644 (file)
--- a/test/Tooling/fixed-database.cpp
+++ b/test/Tooling/fixed-database.cpp
@@ -8,7 +8,8 @@
 // RUN: echo "-Dklazz=class" >> %t/compile_flags.txt
 // RUN: echo '-std=c++11' >> %t/compile_flags.txt
 // RUN: clang-check "%t/Src/test.cpp" 2>&1
-// RUN: not clang-check "%s" 2>&1 | FileCheck "%s" -check-prefix=NODB
+// RUN: echo > %t/compile_flags.txt
+// RUN: not clang-check "%t/Src/test.cpp" 2>&1 | FileCheck "%s" -check-prefix=NODB
 
 // NODB: unknown type name 'klazz'
 klazz F{};