[WIP] test report tweak
[WIP] test report tweak

report the number of namespaces/vars a test is going to do
at the start of a run. mostly for UI purposes.

thheller/shadow-devtools,thheller/shadow-devtools,thheller/shadow-cljs,thheller/shadow-cljs,thheller/shadow-devtools,thheller/shadow-devtools,thheller/shadow-cljs,thheller/shadow-cljs