* Run exec tests in fresh contexts
* Reevaluate modules in every context
* Cache module code when running tests
* Eliminate weakmap accesses as much as possible
* Remove old multiline usage
* Using bundled polyfill to significantly increase performance
The individual requires for each file were the part that was sooooo slow.
* Drop LRU cache size
* Fixes
* Fix test
Co-authored-by: Huáng Jùnliàng <jlhwung@gmail.com>
* Mark transpiled JSX elements as pure
* Avoid duble annotation
* Add "pure" option to the React preset
* Fix generator indentation
* Update tests
* Add tests for the "pure" option
* Update windows fixtures
* Extract for-of iterator handling to a helper
Dis greatly recudes the code size when for-of is used multiple times across the
codebase. Also, makes it easier to read what's happening in a compiled loop.
* Unify spec and loose code
* Legacy implementation fallback
* Update tmp var name
* Updates from review and after rebase
* fix: should not remove let binding even it is wrapped in closure
Fixes#10339
* fix: remove bindings defined in blockScope when wrapped in closure
* Move test assertions to the top level to ensure that they run
* Migrate try-catch duplicate error
* Remove exception for functions and let in the same scope
* Migrate duplicate bindings tests to traverse
* Add test for subscope and let/const
* Add more test cases
* rename colliding let bindings with for loop init
* added complex test case to check if loop init collisions were handled correctly
* updated test files
