[PATCH] [clang-tidy] Add an option to export suggested fixes into a file.

[Alexander Kornienko]

NIce! But please add error handling for YAML serialization and a bit more description of the new option.

================
Comment at: clang-tidy/ClangTidy.cpp:374
@@ +373,3 @@
+  yaml::Output YAML(OS);
+  YAML << TUR;
+}
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"return YAML.error();" seems like a good idea in case the file is not writable or any other error occurs.

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Comment at: clang-tidy/tool/ClangTidyMain.cpp:82
@@ +81,3 @@
+static cl::opt<std::string>
+    ExportFixes("export-fixes", cl::desc("File to store suggested fixes in."),
+                cl::value_desc("filename"), cl::cat(ClangTidyCategory));
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I'd say a few more words about why we need this and how can one use this file.

http://reviews.llvm.org/D5176