Fix the build. Using declarations should not be considering when looking

for overridden virtual methods.

llvm-svn: 106096

clang/lib/Sema/SemaDecl.cpp

@@ -2873,7 +2873,7 @@ static bool FindOverriddenMethod(const CXXBaseSpecifier *Specifier,
   for (Path.Decls = BaseRecord->lookup(Name);
        Path.Decls.first != Path.Decls.second;
        ++Path.Decls.first) {
-    NamedDecl *D = (*Path.Decls.first)->getUnderlyingDecl();
+    NamedDecl *D = *Path.Decls.first;
     if (CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(D)) {
       if (MD->isVirtual() && !Data->S->IsOverload(Data->Method, MD, false))
         return true;

clang/test/SemaCXX/abstract.cpp

@@ -168,3 +168,21 @@ namespace PureImplicit {
   struct D : C {};
   D y;
 }
+
+namespace test1 {
+  struct A {
+    virtual void foo() = 0;
+  };
+
+  struct B : A {
+    using A::foo;
+  };
+
+  struct C : B {
+    void foo();
+  };
+
+  void test() {
+    C c;
+  }
+}