Explicit this inspection: suggest also for synthetic Java property

So #KT-22089 Fixed

idea/testData/inspectionsLocal/explicitThis/syntheticJavaProperty_sameNameJavaProperty.1.java

@@ -0,0 +1,11 @@
+public class Foo {
+    private boolean isB;
+
+    public boolean isB() {
+        return isB;
+    }
+
+    public void setB(boolean b) {
+        isB = b;
+    }
+}