prefer relevant types when completing cast type (IDEA-167190, IDEA-156868)

java/java-tests/testData/codeInsight/completion/normal/PreferCastExpressionSuperTypes.java

@@ -0,0 +1,11 @@
+public class Super {
+
+    static void foo(Object o) {
+      if (o instanceof SString) {
+        ((S<caret>) o)
+      }
+    }
+
+}
+
+class SString implements java.io.Serializable, nonImported.SzNameInTheEnd {}

java/java-tests/testData/codeInsight/completion/smartType/ExpressionSubtypesInCast.java

@@ -0,0 +1,7 @@
+public class Super {
+
+  static void foo(CharSequence o) {
+    ((<caret>) o)
+  }
+
+}