Index: unittests/AST/ASTImporterTest.cpp
===================================================================
--- unittests/AST/ASTImporterTest.cpp
+++ unittests/AST/ASTImporterTest.cpp
@@ -1399,7 +1399,7 @@
   EXPECT_EQ(From->getIdentifierNamespace(), To->getIdentifierNamespace());
 }
 
-TEST_P(ASTImporterTestBase, DISABLED_IDNSOfNonmemberOperator) {
+TEST_P(ASTImporterTestBase, IDNSOfNonmemberOperator) {
   Decl *FromTU = getTuDecl(
       R"(
       struct X {};