Extract Function: Support multiple output values

idea/testData/refactoring/extractFunction/controlFlow/outputValues/tooManyOutputValues.kt

@@ -0,0 +1,23 @@
+// WITH_RUNTIME
+// PARAM_TYPES: kotlin.Int
+// PARAM_TYPES: kotlin.Int
+// PARAM_TYPES: kotlin.Int
+// PARAM_DESCRIPTOR: value-parameter val a: kotlin.Int defined in foo
+// PARAM_DESCRIPTOR: var b: kotlin.Int defined in foo
+// PARAM_DESCRIPTOR: var c: kotlin.Int defined in foo
+// SIBLING:
+fun foo(a: Int): Int {
+    var b: Int = 1
+    var c: Int = 1
+    var d: Int = 1
+    var e: Int = 1
+
+    <selection>b += a
+    c -= a
+    d += c
+    e -= d
+    println(b)
+    println(c)</selection>
+
+    return b + c + d + e
+}