Rename unary plus() and minus() to unaryPlus() and unaryMinus()

idea/testData/quickfix/createFromUsage/createFunction/unaryOperations/minusMissingArgs.kt.after

@@ -1,9 +1,9 @@
-// "Create member function 'minus'" "true"
+// "Create member function 'unaryMinus'" "true"
 
 class A<T>(val n: T) {
-    fun minus(n: Int): A<T> = throw Exception()
+    operator fun minus(n: Int): A<T> = throw Exception()
 
-    operator fun minus(): A<T> {
+    operator fun unaryMinus(): A<T> {
         throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 }