Make sure to diagnose use of declarations in the case where we create an implicit CXXThisExpr.

llvm-svn: 78474

clang/lib/Sema/SemaExpr.cpp

@@ -1139,6 +1139,8 @@ Sema::BuildDeclarationNameExpr(SourceLocation Loc, NamedDecl *D,
           MarkDeclarationReferenced(Loc, D);
           if (PerformObjectMemberConversion(This, D))
             return ExprError();
+          if (DiagnoseUseOfDecl(D, Loc))
+            return ExprError();
           return Owned(new (Context) MemberExpr(This, true, D,
                                                 Loc, MemberType));
         }

clang/test/SemaCXX/attr-deprecated.cpp

@@ -0,0 +1,16 @@
+// RUN: clang-cc %s -verify -fsyntax-only
+class A {
+  void f() __attribute__((deprecated));
+  void g(A* a);
+
+  int b __attribute__((deprecated));
+};
+
+void A::g(A* a)
+{
+  f(); // expected-warning{{'f' is deprecated}}
+  a->f(); // expected-warning{{'f' is deprecated}}
+  
+  (void)b; // expected-warning{{'b' is deprecated}}
+  (void)a->b; // expected-warning{{'b' is deprecated}}
+}