IDEA-137013 InstanceOf checking leads to appearing redundant completion item while smart double-completion

java/java-tests/testData/codeInsight/completion/smartType/second/ChainDuplicationAfterInstanceof.java

@@ -0,0 +1,17 @@
+class Test {
+  public void test(A test) {
+    if (test instanceof B) {
+      String s = <caret>
+    }
+  }
+}
+
+interface A {
+  String test();
+}
+
+class B implements A {
+  public String test() {
+    return "test";
+  }
+}