Remove SminessPropagator and FlowGraphTypePropagator and all associated infrastructure and fields.
Replace multiple fields (result_cid_, propagated_cid_, propagated_type_, reaching_cid_) with a single field of type CompileType which represents an element of type analysis lattice and incorporates information about: value's nullability, concrete class id and abstract super type. This ensures that propagated cid and type are always in sync and complement each other
Implement a new FlowGraphPropagator that propagates types over the CompileType-lattice.
R=fschneider@google.com
Review URL: https://codereview.chromium.org//12260008
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@18456 260f80e4-7a28-3924-810f-c04153c831b5
Replace multiple fields (result_cid_, propagated_cid_, propagated_type_, reaching_cid_) with a single field of type CompileType which represents an element of type analysis lattice and incorporates information about: value's nullability, concrete class id and abstract super type. This ensures that propagated cid and type are always in sync and complement each other
Implement a new FlowGraphPropagator that propagates types over the CompileType-lattice.
BUG=
Review URL: https://codereview.chromium.org//12221119
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@18377 260f80e4-7a28-3924-810f-c04153c831b5
vegorov@google.com