[SemaAccess] Provide meaningful message when we hit llvm_unreachable().

llvm-svn: 243571

diff --git a/clang/lib/Sema/SemaAccess.cpp b/clang/lib/Sema/SemaAccess.cpp
index 0e973cc..7c1755d 100644 (file)
--- a/clang/lib/Sema/SemaAccess.cpp
+++ b/clang/lib/Sema/SemaAccess.cpp
@@ -1766,7 +1766,7 @@ Sema::AccessResult Sema::CheckFriendAccess(NamedDecl *target) {
   case AR_inaccessible: return Sema::AR_inaccessible;
   case AR_dependent: return Sema::AR_dependent;
   }
-  llvm_unreachable("falling off end");
+  llvm_unreachable("invalid access result");
 }
 
 Sema::AccessResult Sema::CheckAddressOfMemberAccess(Expr *OvlExpr,