[PATCH] D25940: [analyzer] LibraryFunctions: Fix errors due to different integral types and typedefs on different architectures.

[Artem Dergachev via cfe-commits]

NoQ created this revision.
NoQ added reviewers: zaks.anna, dcoughlin, a.sidorin, xazax.hun.
NoQ added a subscriber: cfe-commits.

The mechanism for filtering out wrong functions with the same name was too aggressive to filter out eg. `int` vs. `long`, when sizes of both are equal. Such issues were detected by several buildbots.

In fact, our function summaries are not precise enough to deal with such differences, and they do not need to be. This patch fixes the issue by only taking size and signedness into account. Also minor cleanups.


https://reviews.llvm.org/D25940

Files:
  lib/StaticAnalyzer/Checkers/StdLibraryFunctionsChecker.cpp
  test/Analysis/std-c-library-functions.c

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