[code samples] comparing_references_inspection: use testData for test data files

comparing_references_inspection/src/test/java/org/intellij/sdk/codeInspection/ComparingReferencesInspectionTest.java

@@ -24,7 +24,7 @@ public class ComparingReferencesInspectionTest extends LightJavaCodeInsightFixtu
    */
   @Override
   protected String getTestDataPath() {
-    return "src/test/resources";
+    return "src/test/testData";
   }
 
   /**