Fix caret position in "Convert function to property" intention

#KT-19944 Fixed

idea/testData/intentions/convertFunctionToProperty/comments.kt

@@ -2,7 +2,7 @@ annotation class X(val s: String)
 
 // 1
 @X("") // 2
-/* 3 */ fun foo<caret>(): String {
+/* 3 */ fun fo<caret>o(): String {
     // 4
     return ""
 }