pass consistency check for each optimization (#1056)

* fix consistency check

* add [hit_any_variables] optimization and clean up

* dont mess up inner recursive value, clean up

Author: bobzhang

jscomp/all.depend

@@ -399,8 +399,7 @@ core/lam_util.cmx : ext/literals.cmx core/lam_stats.cmx core/lam_print.cmx \
     common/js_config.cmx ext/ident_set.cmx ext/ident_map.cmx \
     ext/ident_hashtbl.cmx ext/ext_list.cmx ext/ext_filename.cmx \
     core/lam_util.cmi
-core/lam_group.cmx : core/lam_util.cmx core/lam_print.cmx core/lam.cmx \
-    core/js_number.cmx ext/ident_set.cmx core/lam_group.cmi
+core/lam_group.cmx : core/lam_print.cmx core/lam.cmx core/lam_group.cmi
 core/lam_pass_deep_flatten.cmx : core/lam_util.cmx core/lam_group.cmx \
     core/lam.cmx core/js_number.cmx ext/ident_set.cmx \
     core/lam_pass_deep_flatten.cmi