* Add error recovery support to @babel/parser
* Update @babel/parser tests to always recover from errors
* Update this.raise usage in @babel/parser:
- expression.js
- lval.js
- statement.js
- estree.js
- flow.js
- jsx/index.js
- tokenizer/index.js
* Update @babel/parser fixtures with recovered errors
* Fix tests out of @babel/parser
* Do not use try/catch for control flow
* Update invalid fixtures
* Do not report invalid lhs in toAssignable
* Do not validate function id multiple times
* Dedupe reserved await errors
* Remove duplicate errors about strict reserved bindings
* Remove duplicated error about yield/await inside params
* Don't error twice for methods in object patterns
* Don't report invalid super() twice
* Remove dup error about reserved param for expr arrows
* Remove double escapes in migrated tests
* Dedupe errors about invalid escapes in identifiers
* Remove duplicated error about decorated constructor
* Remove duplicated error about spread in flow class
* Don't throw for invalid super usage
* Don't fail for object decorators with stage 2
* Fix flow inexact type errors
* Fix flow
* Fix errors about escapes in keywords (ref: #10455)
* Update after rebase
* Fix todo
* Remove duplicated error when using += for defaults
* Remove unnecessary throw
* Nit: use ??
* add partial application syntax and some tests
* remove unnecessary error message and hasPartial function from parseNewArguments
* add types for PartialExpression
* Update the tests
* rename PartialExpression to Partial
* move Partial from expressions to types and rename to ArgumentPlaceholder
* add tests for ArgumentPlaceholder in babel-generator
* rename Partial to ArgumentPlaceholder
* update the tests
* remove alias from the type and undo changes in generated folder
* adds a nice error message
* better definition for the type
* auto-generated files
* update the conditional for allowPlaceholder message and tests
* update CallExpression definition to accept ArgumentPlaceholder
* change description
* clean up
* indent ArgumentPlaceholder entry and revert unwanted changes
