* 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>
* 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
