[analyzer] Add --override-compiler option to scan-build.

The new advanced option ensures ccc-analyze is used even when better
interposition methods are available.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk/tools/scan-build@182981 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed