Conditionally append to array to make token order explicit

Author: MPLew-is

Sources/SwiftFormatPrettyPrint/TokenStreamCreator.swift

@@ -657,14 +657,13 @@ fileprivate final class TokenStreamCreator: SyntaxVisitor {
  after(node.unknownAttr?.lastToken, tokens: .space)
  after(node.label.lastToken, tokens: .break(.reset, size: 0), .break(.open), .open)
 
- // If switch/case labels were configured to be indented, insert an extra close break after the
- // case body.
- // The `after` call after this `if` block will insert its tokens before this one, matching up
- // with the `open` break inserted above, which is before all other tokens.
+ // If switch/case labels were configured to be indented, insert an extra `close` break after the
+ // case body to match the `open` break above
+ var afterLastTokenTokens: [Token] = [.break(.close, size: 0), .close]
  if config.indentSwitchCaseLabels {
-  after(node.lastToken, tokens: .break(.close, size: 0))
+ afterLastTokenTokens.append(.break(.close, size: 0))
  }
- after(node.lastToken, tokens: .break(.close, size: 0), .close)
+ after(node.lastToken, tokens: afterLastTokenTokens)
 
  return .visitChildren
  }
@@ -2046,7 +2045,7 @@ fileprivate final class TokenStreamCreator: SyntaxVisitor {
  }
  return .visitChildren
  }
- 
+
  override func visit(_ node: SameTypeRequirementSyntax) -> SyntaxVisitorContinueKind {
  before(node.equalityToken, tokens: .break)
  after(node.equalityToken, tokens: .space)