Make sure that we have a correct stack trace during async rendering in dev

[ccinelli]

Description

Fix #1312

Checklist:

• I have read the CONTRIBUTING document and have signed (or will sign) the CLA.
• I have updated/added documentation affected by my changes.
• I have added tests to cover my changes.

[jsf-clabot]

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[codecov]

Codecov Report

Merging #1453 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #1453      +/-   ##
==========================================
+ Coverage   90.57%   90.57%   +<.01%     
==========================================
  Files         344      344              
  Lines       12608    12611       +3     
==========================================
+ Hits        11420    11423       +3     
  Misses       1188     1188

Impacted Files	Coverage Δ
src/core-tags/core/await/renderer.js	98.98% <100%> (+0.03%)	⬆️

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[coveralls]

Coverage increased (+0.002%) to 90.58% when pulling 7fa1282 on ccinelli:feature/cc/async-trace into 0414fe8 on marko-js:master.