When we invalidate a declaration, make it public, so that it doesn't
trigger access control or one of the many assertions we have for valid
access specifiers.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97767 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp
index 47b7e7e..9db6ae1 100644
--- a/lib/AST/DeclBase.cpp
+++ b/lib/AST/DeclBase.cpp
@@ -46,6 +46,16 @@
   }
 }
 
+void Decl::setInvalidDecl(bool Invalid) {
+  InvalidDecl = Invalid;
+  if (Invalid) {
+    // Defensive maneuver for ill-formed code: we're likely not to make it to
+    // a point where we set the access specifier, so default it to "public"
+    // to avoid triggering asserts elsewhere in the front end. 
+    setAccess(AS_public);
+  }
+}
+
 const char *DeclContext::getDeclKindName() const {
   switch (DeclKind) {
   default: assert(0 && "Declaration context not in DeclNodes.def!");