Merge pull request #404 from lkuper/cleanup

Just removing some unnecessary imports.

src/comp/middle/tstate/annotate.rs

@@ -29,43 +29,6 @@ import front::ast::decl_item;
 import front::ast::initializer;
 import front::ast::local;
 import front::ast::arm;
-import front::ast::expr_call;
-import front::ast::expr_vec;
-import front::ast::expr_tup;
-import front::ast::expr_path;
-import front::ast::expr_field;
-import front::ast::expr_index;
-import front::ast::expr_log;
-import front::ast::expr_block;
-import front::ast::expr_rec;
-import front::ast::expr_if;
-import front::ast::expr_binary;
-import front::ast::expr_unary;
-import front::ast::expr_assign;
-import front::ast::expr_assign_op;
-import front::ast::expr_while;
-import front::ast::expr_do_while;
-import front::ast::expr_alt;
-import front::ast::expr_lit;
-import front::ast::expr_ret;
-import front::ast::expr_self_method;
-import front::ast::expr_bind;
-import front::ast::expr_spawn;
-import front::ast::expr_ext;
-import front::ast::expr_fail;
-import front::ast::expr_break;
-import front::ast::expr_cont;
-import front::ast::expr_send;
-import front::ast::expr_recv;
-import front::ast::expr_put;
-import front::ast::expr_port;
-import front::ast::expr_chan;
-import front::ast::expr_be;
-import front::ast::expr_check;
-import front::ast::expr_assert;
-import front::ast::expr_cast;
-import front::ast::expr_for;
-import front::ast::expr_for_each;
 import front::ast::stmt;
 import front::ast::stmt_decl;
 import front::ast::stmt_expr;