Extract Function: Utilize pseudo-value usage for return type inference

idea/testData/refactoring/extractFunction/controlFlow/throws/outputValueWithThrow.kt

@@ -0,0 +1,9 @@
+// SIBLING:
+fun foo(a: Int): Int {
+    var b: Int = 1
+
+    <selection>if (n == 10) throw Exception("")
+    b++</selection>
+
+    return b
+}