Change Signature: Introduce variable for expression which can't be safely copied in the course of argument substitution

idea/testData/refactoring/introduceParameter/substituteIncrement.kt

@@ -0,0 +1,10 @@
+// WITH_DEFAULT_VALUE: false
+
+fun foo(a: Int, b: Int): Int {
+    return <selection>a * b</selection> / 2
+}
+
+fun test() {
+    var x = 1
+    foo(++x, x++)
+}