Don't assume that the LHS and RHS of a member pointer expression is a DeclRefExpr. Fixes PR5177.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83986 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/member-function-pointers.cpp b/test/CodeGenCXX/member-function-pointers.cpp
index 9727a9d..13f7de5 100644
--- a/test/CodeGenCXX/member-function-pointers.cpp
+++ b/test/CodeGenCXX/member-function-pointers.cpp
@@ -54,3 +54,20 @@
   (a->*pa)();
   (ar.*pa)();
 }
+
+// PR5177
+namespace PR5177 {
+  struct A {
+   bool foo(int*) const;
+  } a;
+
+  struct B1 {
+   bool (A::*pmf)(int*) const;
+   const A* pa;
+
+   B1() : pmf(&A::foo), pa(&a) {}
+   bool operator()() const { return (pa->*pmf)(new int); }
+  };
+
+  void bar(B1 b2) { while (b2()) ; }
+}