libclang: make getCursorStmt() and getCursorExpr() return const pointers

Also change EnqueueVisitor to use ConstStmtVisitor as a consequence.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173577 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed