KT-18158 Expand selection should select the comment after expression getter on the same line (#1122)

* Expand selection should select the comment after expression getter on the same line #KT-18158 Fixed

* Fixed expand selection behavior for the declaration with comment #KT-18158

* Remove redundant code #KT-18158

idea/testData/codeInsight/overrideImplement/overrideMutableExtensionProperty.kt.after

@@ -4,6 +4,6 @@ interface A {
 
 class B : A {
     override var Int.foo: Double
-        get() = <selection><caret>TODO("not implemented")</selection> //To change initializer of created properties use File | Settings | File Templates.
+        get() = <selection><caret>TODO("not implemented") //To change initializer of created properties use File | Settings | File Templates.</selection>
         set(value) {}
 }