Fix compilation warning in newly added test

Change-Id: Ib5a6d835aa13f21a406bf18f20e05917052e60f3
diff --git a/src/test/java/com/android/tools/r8/desugaring/interfacemethods/DefaultInterfaceMethodDesugaringWithStaticResolutionInvokeVirtualTest.java b/src/test/java/com/android/tools/r8/desugaring/interfacemethods/DefaultInterfaceMethodDesugaringWithStaticResolutionInvokeVirtualTest.java
index 1b51047..bcea446 100644
--- a/src/test/java/com/android/tools/r8/desugaring/interfacemethods/DefaultInterfaceMethodDesugaringWithStaticResolutionInvokeVirtualTest.java
+++ b/src/test/java/com/android/tools/r8/desugaring/interfacemethods/DefaultInterfaceMethodDesugaringWithStaticResolutionInvokeVirtualTest.java
@@ -98,7 +98,7 @@
             .run(parameters.getRuntime(), TestClass.class));
   }
 
-  private void checkResult(TestRunResult result) {
+  private void checkResult(TestRunResult<?> result) {
     // Invalid invoke case is where the invoke-virtual targets C.m.
     if (invalidInvoke) {
       // Up to 4.4 the exception for targeting a private static was ICCE.