fix: return empty string for missing 'type' field in emitWebIdl function

[Bashamega]

related to #1993

Modified the function to exit silently instead of throwing an error.

[github-actions]

Thanks for the PR!

This section of the codebase is owned by @saschanaz - if they write a comment saying "LGTM" then it will be merged.

[Bashamega]

Hello @saschanaz
Do you have time to review this?
Thank you

[saschanaz]

I don't think this is what we want, any broken object without type would then emit broken TypeScript without type. As I commented there it would be nicer to have a conditional merger function, that merges only when the object exists. (merge() merges every field which makes sense for addedTypes, not much for this case. Perhaps add a flag in merge() somehow?)

[Bashamega]

I don't think this is what we want, any broken object without type would then emit broken TypeScript without type. As I commented there it would be nicer to have a conditional merger function, that merges only when the object exists. (merge() merges every field which makes sense for addedTypes, not much for this case. Perhaps add a flag in merge() somehow?)

For example, add a flag to ignore errors?

[saschanaz]

To do a conditional merge. Errors should not be ignored.

[saschanaz]

Something like this. (A modified version of what we already have in src/build/helpers.ts.