Assign bailout and type feedback IDs in a post-pass

src/ast-numbering.h

Index: src/ast-numbering.h
diff --git a/src/ast-numbering.h b/src/ast-numbering.h
new file mode 100644
index 0000000000000000000000000000000000000000..1df714498e36e464dbc08fb7d2c493cbab5dbc20
--- /dev/null
+++ b/src/ast-numbering.h
@@ -0,0 +1,25 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_AST_NUMBERING_H_
+#define V8_AST_NUMBERING_H_
+
+namespace v8 {
+namespace internal {
+
+class CompilationInfo;
+
+class AstNumbering {

[Sven Panne, 2014/10/15 07:41:56]

This is not really a class, using a namespace might be more honest.

[wingo, 2014/10/15 13:53:19]

Done.

+ public:
+  // Assign type feedback IDs, bailout IDs, and other state to an AST node

[Sven Panne, 2014/10/15 07:41:56]

Remove the "and other state" part for now.

+  // tree.
+  //
+  // Mutates the AST, so the AST should not continue to be used in the case of
+  // failure.

[Sven Panne, 2014/10/15 07:41:56]

Actually, this is not true: We just failed to set the IDs, nothing else should
have been damaged.

+  static bool Renumber(FunctionLiteral* function, Zone* zone);
+};
+}
+}  // namespace v8::internal
+
+#endif  // V8_AST_NUMBERING_H_