Recognize that EnumConstantDecls can be found by lookup and are not instance

members.  Fixes PR5667.

llvm-svn: 90341

clang/lib/Sema/SemaExpr.cpp

@@ -733,6 +733,9 @@ static bool IsProvablyNotDerivedFrom(Sema &SemaRef,
 }
                                   
 static bool IsInstanceMember(NamedDecl *D) {
+  if (isa<EnumConstantDecl>(D))
+    return false;
+
   assert(isa<CXXRecordDecl>(D->getDeclContext()) &&
          "checking whether non-member is instance member");
 

clang/test/SemaCXX/qualified-id-lookup.cpp

@@ -109,3 +109,18 @@ struct Undef { // expected-note{{definition of 'struct Undef' is not complete un
 int Undef::f() {
   return sizeof(Undef);
 }
+
+// PR clang/5667
+namespace test1 {
+  template <typename T> struct is_class {
+    enum { value = 0 };
+  };
+
+  template <typename T> class ClassChecker {
+    bool isClass() {
+      return is_class<T>::value;
+    }
+  };
+
+  template class ClassChecker<int>;  
+}