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errors: align source-map stacks with spec

Rodrigo Muino Tomonari requested to merge github/fork/bcoe/prepare-stack-trace-v2 into master

Reformat stack traces when --enable-source-maps flag is set to format more likely to fit https://github.com/tc39/proposal-error-stacks

After discussion with @ljharb, who's working on the Error Stacks TC39 spec, we decided that it would be better to modify the behavior of --enable-source-maps, so that the user gets just the original call site, rather than both the original and transpiled call site.

The reasoning being, this gives us much of the value of the --enable-source-maps feature, without deviating from stack traces on other platforms.

This is a step towards removing the experimental flag from --enable-source-maps.

CC: @nodejs/tooling

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