Introduce...: Allow semicolon extraction

#KT-7583 Fixed

idea/testData/refactoring/extractFunction/basic/lineWithSemicolon.kt

@@ -0,0 +1,3 @@
+fun foo() {
+    <selection>println("Hey!");</selection>
+}

idea/testData/refactoring/extractFunction/basic/lineWithSemicolon.kt.after

@@ -0,0 +1,7 @@
+fun foo() {
+    __dummyTestFun__()
+}
+
+private fun __dummyTestFun__() {
+    println("Hey!");
+}