"this" with matching type are preferred in ordinary completion

idea/idea-completion/testData/weighers/basic/expectedInfo/PreferMatchingThis.kt

@@ -0,0 +1,13 @@
+interface X
+
+open class Y : X {
+    open inner class Inner {
+        fun Any.foo(): X {
+            if (this@Inner is X) return this@<caret>
+        }
+    }
+}
+
+// ORDER: this@Inner
+// ORDER: this@Y
+// ORDER: this@foo