[PATCH] Change ClangTool::run output processing file to debug output

[Ariel Bernal]

================
Comment at: test/Tooling/pch.cpp:10
@@ -12,1 +9,3 @@
+// the test file with an unrelated include as second translation unit.
+// Test for an empty file after clang-check is executed.
 // RUN: clang-check "%S/Inputs/pch.cpp" "%s" -- -include-pch %t1 -I "%S" -c >%t2 2>&1
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Ariel Bernal wrote:
> Manuel Klimek wrote:
> > Wouldn't an empty file also occur if nothing is processed at all?
> Manuel, yes the file would be empty if nothing is processed. Assuming no processing error, there won't be any output unless it's in debug mode and -debug is specified but even if we could detect that, there won't be any output in release mode (actually -debug won't be recognized). I think the test is still useful because it can detect processing errors.
> 
Another way would be to make clang-check output something like -ast-dump so we could test for a non-empty file and if there is a compilation error the test will still fail.


http://llvm-reviews.chandlerc.com/D543