fix(mdx-loader): loader error message should display stacktrace if no extra MDX details #9091
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Motivation
When MDX throws a regular JS error without extra useful attributes, the error message is not really helpful because the stacktrace is not included.
In these cases we want the stacktrace to be printed as well to troubleshoot the problem.
Note, for now this only works in the Webpack dev server:
The console (start+build) will print an unhelpful stacktrace:
This is very likely related to this issue: #9023
Test Plan
local only 😓