Debugging in kernel shaping up.

runtime/vm/object.h

Index: runtime/vm/object.h
diff --git a/runtime/vm/object.h b/runtime/vm/object.h
index 61a8051b8ebcba5e3b76764371117ce469bb924f..a21534f7aa9d5bfb70709842830b9b57c74389d2 100644
--- a/runtime/vm/object.h
+++ b/runtime/vm/object.h
@@ -3555,6 +3555,12 @@ class Script : public Object {
 
   void set_line_starts(const Array& value) const;
 
+  void set_tokens_seen(const Array& value) const;

[Kevin Millikin (Google), 2017/01/24 13:44:13]

I don't really like the name.  They're not tokens, really.  And I don't know why
it's significant that they were seen (or not seen).  Obviously they were
seen....

Instead of tokens_seen I suggest something like debug_positions and instead of
yields_seen I suggest something like yield_positions.

[jensj, 2017/01/25 12:52:22]

Done.

+
+  void set_yields_seen(const Array& value) const;
+
+  RawArray* yields_seen() const { return raw_ptr()->yields_seen_; }
+
   void Tokenize(const String& private_key, bool use_shared_tokens = true) const;
 
   RawLibrary* FindLibrary() const;
@@ -3605,6 +3611,7 @@ class Script : public Object {
   void set_load_timestamp(int64_t value) const;
   void set_tokens(const TokenStream& value) const;
   RawArray* line_starts() const { return raw_ptr()->line_starts_; }
+  RawArray* tokens_seen() const { return raw_ptr()->tokens_seen_; }
 
   static RawScript* New();