* fix(babel-parser): Move storage of expressionValue in DirectiveLiteral to main parser so it is accessible to others.
Closes#13953.
Reviewed by @tolmasky.
* Add results from running `OVERWRITE=true yarn jest babel-parser`.
Reviewed by @tolmasky.
These are now enabled by default:
- objectRestSpread (2018)
- asyncGenerators (2018)
- optionalCatchBInding (2019)
- jsonStrings (2019)
TODO (after this commit):
- [ ] Deprecate the `@babel/plugin-syntax-*` packages.
- [ ] Deprecate the `@babel/plugin-proposal-*` packages.
- [ ] Create the `@babel/plugin-transform-*` packages.