Compilation is slow for retest

[linwaytin]

This is a nice package, as it allows tests in a single script. However, the retest or runtests functions take a lot of time to compile when they are called the first time. Do you think it is possible to speed the compilation up? Thanks.

[JamesWrigley]

Thanks for the report, there's a precompilation workload on master now. On my machine that reduces TTFX of one of the tests from 9s to 3s. I'll let it sit there for a bit for a testing, and tag a new release maybe next week.

[linwaytin]

Awesome. Thanks.