Improve resource management for coords, shapes and paints. - Make paint to use weak reference to release resource before collected. - Call Persistent<Object>::Dispose() before deleting the handle variable. Dispose() will real release Persistent handle. Handle variable is just a pointer to the handle.

divert([-1])

define([_arg1], [$1])

define([_foreach], [ifelse([$2], [()], [],
[define([$1], _arg1$2)$3[]_foreach([$1], (shift$2), [$3])])])

define([foreach], [pushdef([$1])_foreach($@)popdef([$1])])

divert[]dnl