IDEA-CR-3180: UP-4259 Avoid ConcurrentModificationException on .InspectionProjectProfileManager initialization

platform/analysis-impl/src/com/intellij/codeInspection/ex/InspectionProfileImpl.java

@@ -942,6 +942,7 @@ public class InspectionProfileImpl extends ProfileEx implements ModifiableModel,
             map.put(toolId, toolSettingsAreEqual(toolId, myBaseProfile, this));
           }
           myDisplayLevelMap = map;
+          return map;
         }
       }
     }