Transition to TryStatement single handler #1031
Description
To facilitate the transition of TryStatement from the old handlers to the new handler (see #1030), Esprima should produce both properties. Once all the major downstream tools have been ported to use the handler only, handlers can be safely removed in the next major version.
In the current master branch:
> require('./esprima').parse('try{}catch(e){}')
{ type: 'Program',
body:
[ { type: 'TryStatement',
block: [Object],
guardedHandlers: [],
handlers: [Object],
finalizer: null } ] }Once this transition step is implemented, it will look like:
> require('./esprima').parse('try{}catch(e){}')
{ type: 'Program',
body:
[ { type: 'TryStatement',
block: [Object],
guardedHandlers: [],
handlers: [Object],
handler: [Object],
finalizer: null } ] }