show conflict on invert boolean and method references (IDEA-112572)

java/java-tests/testData/refactoring/invertBoolean/methodRefs.java

@@ -0,0 +1,14 @@
+abstract class A{
+    static boolean isB<caret>ool() {
+        return false;
+    }
+    
+    
+    interface I {
+        boolean b();
+    }
+    
+    {
+        I i = A::isBool;
+    }
+}