[api-extractor] Namespace/Module Declaration has `{};` at the end

[TanayParikh]

Summary

In my combined .d.ts file, namespace/module declarations contain a line with {}; at the end (before the closing brace of the namespace/module). This is invalid syntax and produces an error.

Note: I have confirmed the original module/namespace doesn't contain the offending {}; that's present in the rolled up type definition.

Repro steps

Roll-up TS files containing namespaces/modules.

Expected result:

No {}; before end of namespace/module.

Actual result:

Details

Standard questions

Please answer these questions to help us investigate your issue more quickly:

Question	Answer
@microsoft/api-extractor version?	7.19.2
Operating system?	Linux / Github codespaces
API Extractor scenario?	rollups (.d.ts)
Would you consider contributing a PR?
TypeScript compiler version?	4.5.4
Node.js version (node -v)?