[SourceKit] Adjust test case since we now consider argument labels in comments

Companion of swiftlang/swift-syntax#2401

Author: ahoppen

test/refactoring/SyntacticRename/Outputs/textual/foo.swift.expected

@@ -1,5 +1,5 @@
 /*
-    /*foo:unknown*/<base>foo</base>() is not /*foo:unknown*/<base>foo</base>(first:)
+    /*foo:unknown*/<base>foo</base>() is not /*foo:unknown*/foo(first:)
 */
 /// This describes /*foo:unknown*/<base>foo</base> and /*foo:unknown*/<base>foo</base>
 func /*foo:def*/<base>foo</base>() {

test/refactoring/SyntacticRename/arg_labels_in_comment.swift

@@ -0,0 +1,16 @@
+// REQUIRES: swift_swift_parser
+// RUN: %empty-directory(%t)
+// RUN: split-file %s %t
+// RUN: %refactor -find-rename-ranges -source-filename %t/input.swift -pos="foo" -is-function-like -old-name "foo(baz:)" > %t/actual-output.swift
+// RUN: diff -u %t/expected-output.swift %t/actual-output.swift
+
+//--- input.swift
+
+/// `/*foo:unknown*/foo(baz:)` does very importants stuff
+func /*foo:def*/foo(baz: Int) {}
+
+//--- expected-output.swift
+
+/// `/*foo:unknown*/<base>foo</base>(<sel index=0>baz</sel>:)` does very importants stuff
+func /*foo:def*/<base>foo</base>(<arglabel index=0>baz</arglabel><param index=0></param>: Int) {}
+