Fix declaration of _MixinFieldNamingScope.names.

BUG=
TBR=karlklose@google.com

Review URL: https://codereview.chromium.org//759883003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41988 260f80e4-7a28-3924-810f-c04153c831b5
Encode super calls via extra properties on prototypes.

BUG= http://dartbug.com/21666
R=ahe@google.com, floitsch@google.com

Review URL: https://codereview.chromium.org//753113002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41989 260f80e4-7a28-3924-810f-c04153c831b5
Delete unused readFunction.

BUG=
TBR=johnniwinther@google.com

Review URL: https://codereview.chromium.org//764553002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41990 260f80e4-7a28-3924-810f-c04153c831b5
Various clean up.

R=johnniwinther@google.com

Review URL: https://codereview.chromium.org//757043002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41991 260f80e4-7a28-3924-810f-c04153c831b5