Allow excluding of dirs/files from analysis

[llvmbot]

Bugzilla Link	2706
Version	unspecified
OS	MacOS X
Reporter	LLVM Bugzilla Contributor
CC	@FlashSheridan

Extended Description

The basic idea is to allow certain dirs/files to not be scanned by the analyzer, this can be done as:

• Early implementation, allow multiple exclude statements on the command line, only support matching directories to exclude

• Later implementation, allow multiple exclude statements, allow each of those statements to be some sort of advance matching (wildcard, regex)

[llvmbot]

assigned to @tkremenek

[llvmbot]

Echoing that this would be very useful. I've got a project that has to compile its own sqlite3.c, which not only takes 20 minutes to analyze, but is riddled with static analysis errors. Love to be able to tell clang that's not my problem.

[llvmbot]

+1