Added bandaid support in CFG construction for ObjCForEachStmt and ObjCAtTryStmt:
we gracefully back out and return NULL for the CFG, allowing clients to skip
analyzing functions with these CFGs. We will add support later.

Modified base ASTConsumer "CFGVisitor" to detect when a CFG is not constructed
and to emit a warning.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48322 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed