Add let-traced

[zane]

No description provided.

[sritchie]

I don't think this will work with our current gen-rewrites-trace!-calls approach. More evidence for a function-based approach being the right way?

[codecov]

Codecov Report

Merging #7 (a52e369) into main (58486bd) will decrease coverage by 0.47%.
The diff coverage is 12.50%.

@@            Coverage Diff             @@
##             main       #7      +/-   ##
==========================================
- Coverage   66.76%   66.29%   -0.47%     
==========================================
  Files          18       18              
  Lines         707      715       +8     
  Branches       17       16       -1     
==========================================
+ Hits          472      474       +2     
- Misses        218      225       +7     
+ Partials       17       16       -1     

Files	Coverage Δ
src/gen/dynamic.cljc	43.13% <12.50%> (-2.61%)	⬇️

... and 1 file with indirect coverage changes

[zane]

Yes, though we could probably unblock this in the interim by having the gen macro macroexpand its argument.