[Auth] Switch compat UserCredential function to use promise chaining instead of async/await

[sam-gc]

Hopefully to address b/198623196

[changeset-bot]

🦋 Changeset detected

Latest commit: 19cc907

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@firebase/auth-compat	Patch
@firebase/auth	Patch
firebase	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[google-oss-bot]

Binary Size Report

Affected SDKs

• @firebase/auth-compat

  Type	Base (91117e0)	Head (b73c5eb)	Diff
  browser	19.7 kB	19.7 kB	+8 B (+0.0%)
  esm5	26.8 kB	26.6 kB	-199 B (-0.7%)
  main	29.3 kB	29.1 kB	-211 B (-0.7%)
  module	19.7 kB	19.7 kB	+8 B (+0.0%)

• firebase

  Type	Base (91117e0)	Head (b73c5eb)	Diff
  firebase-auth-compat.js	122 kB	122 kB	-2 B (-0.0%)
  firebase-compat.js	748 kB	748 kB	-2 B (-0.0%)

Test Logs

• Base (91117e0c): https://github.com/firebase/firebase-js-sdk/actions/runs/1292431397
• Head (b73c5eb2): https://github.com/firebase/firebase-js-sdk/actions/runs/1292900510

[google-oss-bot]

Size Analysis Report

Affected Products

No changes between base commit (91117e0) and head commit (b73c5eb).

Test Logs

• Base (91117e0): https://github.com/firebase/firebase-js-sdk/actions/runs/1292431397
• Head (b73c5eb): https://github.com/firebase/firebase-js-sdk/actions/runs/1292900510

[eiiot]

Still facing this issue using Web V8 (9.1.2).

Using:
<script defer src="/__/firebase/9.1.2/firebase-auth-compat.js"></script>

Error is the same.
Unhandled Promise Rejection: TypeError: Right side of assignment cannot be destructured

[sam-gc]

@eliot this appears to be fixed in 9.1.2. Regardless, try upgrading to 9.1.3 and seeing if you still see the issue. If you are, please file a new issue in the repo.