* Include \def commands in command definitions
* Allow command name to be in CtrlSym
* Pull nodeIntersectsChange check out of branches
* Fix \def handling
* Add handling for \newenvironment and \renewenvironment
* Allow \def to have optional arguments
* :x
Revert "Add handling for \newenvironment and \renewenvironment"
This reverts commit a70d3a0a13ed552daf3b761893e3f8609f0b0fc8.
* Add let commands to defintions
* Add environment names to math preview
* Ignore let command definitions in autocomplete
* Move nodeIntersectsChange check back into each block
* Add childOfNodeWithType utility and use to get command names
* commandNameText -> commandName
* Only include environment definitions
* Rename documentEnvironmentNames to documentEnvironments
* EnvironmentName -> Environment
* Format
GitOrigin-RevId: 9c5d701423ae786e5ff91960b4bcd94cd35d21c8
