Analysis: Make CFG::graph_iterator dereference to non-const

Since the original commit in r145858, we've had `CFG::graph_iterator`
and `CFG::const_graph_iterator`, and both have derefenced to a
`const`-ified `value_type`.  The former has an implicit conversion to
non-`const`, which is how this worked at all until r249782 started using
the dereference operator (partially reverted in r249783).

This fixes the non-const iterator to be non-const (sometimes
const-iterators are intentional, but with a separate const-ified class
(and a non-const implicit conversion leak) that's not likely to be the
case here).

llvm-svn: 249849

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/include/clang/Analysis/CFG.h b/clang/include/clang/Analysis/CFG.h
index c39db8268f7..293990c88e7 100644
--- a/clang/include/clang/Analysis/CFG.h
+++ b/clang/include/clang/Analysis/CFG.h
@@ -766,7 +766,7 @@ public:
   /// (not a pointer to CFGBlock).
   class graph_iterator {
   public:
-    typedef const CFGBlock                  value_type;
+    typedef CFGBlock                        value_type;
     typedef value_type&                     reference;
     typedef value_type*                     pointer;
     typedef BumpVector<CFGBlock*>::iterator ImplTy;