* chore: fix uses of var in core/block_dragger
* chore: fix uses of var in core/extensions.js
* chore: fix uses of var in core/field_multilineinput.js
* chore: fix uses of var in assorted core files
* chore: fix uses of var in node test runner and playground screenshot code
* fix: undefined return from measureFontMetrics
* fix: violations of no-const-assign
* chore: only one variable declaration per line
* Google changed from an Inc to an LLC.
This happened back in 2017 but we didn’t notice. Officially we should update files from Inc to LLC when they are changed as part of regular edits, but this is a nightmare to remember for the next decade.
* Remove project description/titles from licenses
This is no longer part of Google’s header requirements. Our existing descriptions were useless (“Visual Blocks Editor”) or grossly obselete (“Visual Blocks Language”).
* License no longer requires URL.
* Fix license regexps.
