Fix test data for postfix templates test

In this tests there are two variants:
- One extracts the lambda
- And another extracts the whole call

For some reason, the order of completion variants has been changed in 182

idea/testData/codeInsight/postfix/valAtLambaArgumentInCall.kt.after

@@ -1,5 +1,6 @@
 // ALLOW_MULTIPLE_EXPRESSIONS
 fun bar(x: (Int) -> String) = x(1)
 fun foo() {
-    val bar = bar() { y: Int -> "abc" }
+    val x = { y: Int -> "abc" }
+    bar(x)
 }

idea/testData/codeInsight/postfix/valAtLambaArgumentInCall.kt.after.181

@@ -0,0 +1,5 @@
+// ALLOW_MULTIPLE_EXPRESSIONS
+fun bar(x: (Int) -> String) = x(1)
+fun foo() {
+    val bar = bar() { y: Int -> "abc" }
+}