[cfe-commits] PATCH #1 for "[sema++] clang should give a fixit for */& mismatch"

[Anna Zaks]

This patch is a first step towards providing FixItHints in case a function call is missing one/several * or & operators (See http://llvm.org/PR5941).

With this fix, the error message will display the function call. It will be followed by the list of notes - one for each possible candidate function declaration. If a function call can be fixed to match the particular declaration, a FixItHint will be provided along with the note. 

I also bumped up the number of MaxFixItHints to 6 (we need 2 FixIts per incorrect argument).

The remaining steps are:
 1) Use FixIts when determining the order in which the notes should be displayed.
 2) Find out if the same FixIts can be used with errors other then "error: no matching function for call to foo".

Thanks,
Anna.
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