Update test

Author: ahejlsberg

tests/cases/conformance/types/literal/templateLiteralTypesPatterns.ts

@@ -202,9 +202,9 @@ export abstract class BB {
 }
 
 // repro from https://github.com/microsoft/TypeScript/issues/54177#issuecomment-1538436654
-function conversionTest(groupName: | "downcast" | "dataDowncast" | "editingDowncast" | `${string & {}}Downcast`) {}
+function conversionTest(groupName: | "downcast" | "dataDowncast" | "editingDowncast" | `${string}Downcast` & {}) {}
 conversionTest("testDowncast");
-function conversionTest2(groupName: | "downcast" | "dataDowncast" | "editingDowncast" | `${{} & string}Downcast`) {}
+function conversionTest2(groupName: | "downcast" | "dataDowncast" | "editingDowncast" | {} & `${string}Downcast`) {}
 conversionTest2("testDowncast");
 
 function foo(str: `${`a${string}` & `${string}a`}Test`) {}