Extract/Introduce variable: fix to work correctly if caret is before right parenthesis or comment

#KT-28607 Fixed

idea/testData/smartSelection/beforeComment.kt

@@ -0,0 +1,13 @@
+class A {
+    val list = listOf(1, 2, 3)
+}
+
+fun foo(a: A) {
+    for (x in a.list<caret>/* comment */) {
+        println(x)
+    }
+}
+
+/*
+a.list
+*/

idea/testData/smartSelection/beforeKDocComment.kt

@@ -0,0 +1,13 @@
+class A {
+    val list = listOf(1, 2, 3)
+}
+
+fun foo(a: A) {
+    for (x in a.list<caret>/** kdoc **/) {
+        println(x)
+    }
+}
+
+/*
+a.list
+*/

idea/testData/smartSelection/beforeRightParenthesis.kt

@@ -0,0 +1,13 @@
+class A {
+    val list = listOf(1, 2, 3)
+}
+
+fun foo(a: A) {
+    for (x in a.list<caret>) {
+        println(x)
+    }
+}
+
+/*
+a.list
+*/

idea/testData/smartSelection/beforeRightParenthesis2.kt

@@ -0,0 +1,13 @@
+class A {
+    val list = listOf(1, 2, 3)
+}
+
+fun foo(a: A) {
+    for (x in a.list /*comment*/<caret>) {
+        println(x)
+    }
+}
+
+/*
+a.list
+*/

idea/testData/smartSelection/beforeRightParenthesis3.kt

@@ -0,0 +1,13 @@
+class A {
+    val list = listOf(1, 2, 3)
+}
+
+fun foo(a: A) {
+    for (x in a.list /** kdoc **/<caret>) {
+        println(x)
+    }
+}
+
+/*
+a.list
+*/