Fix rewatch warning replay after early compile errors

[cknitt]

Summary

Fixes a rewatch scheduler edge case where stored compiler warnings could disappear after an early compile error.

The DAG scheduler can stop dispatching new work once a module fails. Some modules may be part of the compile universe but never actually recompile. Previously, warning replay skipped every module in the compile universe, so warnings stored on those skipped modules were not emitted. This could make snapshot output depend on scheduling order.

Changes

• Track modules that actually recompiled instead of using the full compile universe.
• Preserve stored warning state for clean, non-recompiled completions.
• Replay stored warnings for modules that did not actually recompile.
• Extract the replay logic into a helper.
• Add focused regression tests for skipped-module warning replay.

[pkg-pr-new]

Open in StackBlitz

rescript

npm i https://pkg.pr.new/rescript@8408

@rescript/darwin-arm64

npm i https://pkg.pr.new/@rescript/darwin-arm64@8408

@rescript/darwin-x64

npm i https://pkg.pr.new/@rescript/darwin-x64@8408

@rescript/linux-arm64

npm i https://pkg.pr.new/@rescript/linux-arm64@8408

@rescript/linux-x64

npm i https://pkg.pr.new/@rescript/linux-x64@8408

@rescript/runtime

npm i https://pkg.pr.new/@rescript/runtime@8408

@rescript/win32-x64

npm i https://pkg.pr.new/@rescript/win32-x64@8408

commit: a3eb179