Prevent CodeKind constants from being canonicalized.

pkg/analyzer/lib/src/services/formatter_impl.dart

Index: pkg/analyzer/lib/src/services/formatter_impl.dart
diff --git a/pkg/analyzer/lib/src/services/formatter_impl.dart b/pkg/analyzer/lib/src/services/formatter_impl.dart
index 3e4bcc50187c79bc30e101b25c656fa04bdc7859..8cc329d6d553d49483834f2abbe3fa0d4575c340 100644
--- a/pkg/analyzer/lib/src/services/formatter_impl.dart
+++ b/pkg/analyzer/lib/src/services/formatter_impl.dart
@@ -59,13 +59,15 @@ class FormatterException implements Exception {
 
 /// Specifies the kind of code snippet to format.
 class CodeKind {
-  const CodeKind._();
+  final int ordinal;

[Brian Wilkerson, 2014/11/14 19:16:15]

Alternatively, we could give them a name, which would potentially be useful for
debugging.

+
+  const CodeKind._(this.ordinal);
 
   /// A compilation unit snippet.
-  static const COMPILATION_UNIT = const CodeKind._();
+  static const COMPILATION_UNIT = const CodeKind._(0);
 
   /// A statement snippet.
-  static const STATEMENT = const CodeKind._();
+  static const STATEMENT = const CodeKind._(1);
 
 }