Clean up rustdoc js testers#70224

Merged

bors merged 3 commits intorust-lang:masterfrom

GuillaumeGomez:clean-up-rustdoc-js-testers

Apr 3, 2020

Commits on Mar 21, 2020

Clean up rustdoc js tester source code and move common code in one place
GuillaumeGomez
committed
Pick the last version of the different files if there is more than one
GuillaumeGomez
committed
Improve tests display for rustdoc-js-std tester
GuillaumeGomez
committed