Import bundle should unconditionally generate source map URL

[kriskowal]

What is the Problem Being Solved?

We need to reveal source maps in IDEs for programs transformed by the static-module-record precompiler.

Description of the Design

Some IDEs support a configuration that will translate source map URLs to physical file URLs ad hoc based on their protocol [citation needed]. We can easily alter importBundle to inject a source map URL of the form endo://${sourcehash}.map.json.

Bundles currently entrain the hash of the precompiled source JSON. We would need to inject source hash into the generated compartment-map.json to make this work for some degenerate cases.

To complete the circle, we ought to have an endo where source-map command that reveals the URL a developer will need to configure their IDE with the location of the source map cache that bundle-source dumps into.

This issue is resolved when clear documentation is socialized and evidence exists for a nice debug experience.

Security Considerations

Scaling Considerations

Test Plan

Upgrade Considerations

[kriskowal]

attn @mhofman for details on IDE config and credit to @mhofman for this design direction.

[kriskowal]

Notes:

• https://gist.github.com/jarshwah/389f93f2282a165563990ed60f2b6d6c
• https://stackoverflow.com/questions/59932732/can-vs-code-debugging-use-sourcemappathoverrides-along-with-serverreadyaction
• https://code.visualstudio.com/docs/cpp/launch-json-reference
• https://code.visualstudio.com/docs/nodejs/nodejs-debugging#_source-maps