whisperity added a comment.

In https://reviews.llvm.org/D50488#1225064, @george.karpenkov wrote:

> Why explicitly skip C  projects? We would not be able to match `std::X` 
> functions anyway.


Why spend time constructing matchers and running on the AST when we are sure 
that generating any result is impossible? Skipping the entire useless traversal 
of the tree can end up saving precious execution time that should not be 
overlooked.


https://reviews.llvm.org/D50488



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