[PATCH] Improve robustness of dependency-generation-crash.c test.

[Matthias Braun]

Hi mcrosier,

The test wants to provoke a failure when opening the output file.
Using chmod 0 on the output file does not work reliably on all
filesystems or when running the test as root.
Change the test to use a nonexistant directory instead.

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D7620

Files:
  test/Frontend/dependency-generation-crash.c

Index: test/Frontend/dependency-generation-crash.c
===================================================================
--- test/Frontend/dependency-generation-crash.c
+++ test/Frontend/dependency-generation-crash.c
@@ -1,7 +1,4 @@
-// RUN: touch %t
-// RUN: chmod 0 %t
-// RUN: not %clang_cc1 -E -dependency-file bla -MT %t -MP -o %t -x c /dev/null 2>&1 | FileCheck %s
-// RUN: rm -f %t
+// RUN: not %clang_cc1 -E -dependency-file bla -MT /thisX/doesXX/not/exist/bla.o -MP -o /thisX/doesXX/not/exist/bla.o -x c /dev/null 2>&1 | FileCheck %s
 
 // CHECK: error: unable to open output file

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