[PATCH] Disable preprocessor line directives to avoid false positive/negative test results

[Geoff Berry]

Disable preprocessor line directives in case the string block or block_1 or block_2 appears in the path to the test file, which would cause it to appear in the line directive, causing the test to fail.

http://reviews.llvm.org/D10443

Files:
  test/Preprocessor/cxx_true.cpp

Index: test/Preprocessor/cxx_true.cpp
===================================================================
--- test/Preprocessor/cxx_true.cpp
+++ test/Preprocessor/cxx_true.cpp
@@ -1,7 +1,7 @@
-/* RUN: %clang_cc1 -E %s -x c++ | grep block_1
-   RUN: %clang_cc1 -E %s -x c++ | not grep block_2
-   RUN: %clang_cc1 -E %s -x c | not grep block
-   RUN: %clang_cc1 -E %s -x c++ -verify -Wundef
+/* RUN: %clang_cc1 -E -P %s -x c++ | grep block_1
+   RUN: %clang_cc1 -E -P %s -x c++ | not grep block_2
+   RUN: %clang_cc1 -E -P %s -x c | not grep block
+   RUN: %clang_cc1 -E -P %s -x c++ -verify -Wundef
 */
 // expected-no-diagnostics

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