Error: Debug Failure. Invalid cast. The supplied value [object Object] did not pass the test 'isTypeAliasDeclaration'. in 'Object.cast' during 'getCodeFixes'

[typescript-bot]

This issue comes from crash dumps in telemetry. We've tried to de-duplicate issues on a best-effort basis, comparing the sequence of methods called and the command requested while ignoring line numbers.
TypeScript version prefix: 3.8.3
VSCode version: 1.44.0
Command requested: getCodeFixes
Hitting sessions: 2055
Five line hash: 9fcefa6328ea3d6f93e6ccd28ffdab8c
Stack:

    at cast (tsserver.js:1371:25)
    at getInfo (tsserver.js:130356:107)
    at getCodeActions (tsserver.js:130337:28)
    at <anonymous> (tsserver.js:124540:77)
    at flatMap (tsserver.js:465:25)
    at getFixes (tsserver.js:124540:23)
    at <anonymous> (tsserver.js:135666:35)
    at flatMap (tsserver.js:465:25)
    at getCodeFixesAtPosition (tsserver.js:135664:23)
    at unknown (suppressed.js)
    at unknown (suppressed.js)
    at Session.getCodeFixes (tsserver.js:145753:64)
    at _a.<computed> (tsserver.js:144510:61)
    at <anonymous> (tsserver.js:146003:88)
    at Session.executeWithRequestId (tsserver.js:145994:28)
    at Session.executeCommand (tsserver.js:146003:33)
    at Session.onMessage (tsserver.js:146027:35)
    at <anonymous> (tsserver.js:147342:27)
    at unknown (suppressed.js)
    at unknown (suppressed.js)
    at unknown (suppressed.js)
    at unknown (suppressed.js)
    at unknown (suppressed.js)
    at unknown (suppressed.js)
    at unknown (suppressed.js)
    at unknown (suppressed.js)
    at unknown (suppressed.js)

[typescript-bot]

Revised stack format and updated hash.

[typescript-bot]

This issue reproduced in the following context:
TypeScript version prefix: 4.1.2
VSCode version: 1.51.1
Command requested: getCodeFixes
Hitting sessions: 163
Five line hash: 9fcefa6328ea3d6f93e6ccd28ffdab8c
Stack:

    at cast (tsserver.js:1498:25)
    at getInfo (tsserver.js:140846:107)
    at getCodeActions (tsserver.js:140827:28)
    at <anonymous> (tsserver.js:133528:77)
    at flatMap (tsserver.js:513:25)
    at getFixes (tsserver.js:133528:23)
    at <anonymous> (tsserver.js:147037:35)
    at flatMap (tsserver.js:513:25)
    at getCodeFixesAtPosition (tsserver.js:147035:23)
    at Session.getCodeFixes (tsserver.js:157976:64)
    at _a.<computed> (tsserver.js:156653:61)
    at <anonymous> (tsserver.js:158276:88)
    at Session.executeWithRequestId (tsserver.js:158267:28)
    at Session.executeCommand (tsserver.js:158276:33)
    at Session.onMessage (tsserver.js:158300:35)
    at <anonymous> (tsserver.js:160510:27)
    at unknown (suppressed.js:223:5)
    at unknown (suppressed.js:315:10)
    at unknown (suppressed.js:460:12)
    at unknown (suppressed.js:172:10)
    at unknown (suppressed.js:223:5)
    at unknown (suppressed.js:309:12)
    at unknown (suppressed.js:290:11)
    at unknown (suppressed.js:224:10)
    at unknown (suppressed.js:181:23)

[typescript-bot]

This issue reproduced in the following context:
TypeScript version prefix: 4.5.5
VSCode version: 1.63.2
Command requested: getCodeFixes
Hitting sessions: 547
Five line hash: 9fcefa6328ea3d6f93e6ccd28ffdab8c
Stack:

    at cast (tsserver.js:1507:25)
    at getInfo (tsserver.js:153707:107)
    at getCodeActions (tsserver.js:153688:28)
    at <anonymous> (tsserver.js:145528:77)
    at flatMap (tsserver.js:522:25)
    at getFixes (tsserver.js:145528:23)
    at <anonymous> (tsserver.js:160396:35)
    at flatMap (tsserver.js:522:25)
    at getCodeFixesAtPosition (tsserver.js:160394:23)
    at unknown (suppressed.js:178:34)
    at unknown (suppressed.js:79:25)
    at Session.getCodeFixes (tsserver.js:171882:64)
    at _a.<computed> (tsserver.js:170518:61)
    at <anonymous> (tsserver.js:172195:88)
    at Session.executeWithRequestId (tsserver.js:172186:28)
    at Session.executeCommand (tsserver.js:172195:33)
    at Session.onMessage (tsserver.js:172221:35)
    at <anonymous> (tsserver.js:174826:31)
    at unknown (suppressed.js:315:20)
    at unknown (suppressed.js:337:10)
    at unknown (suppressed.js:482:12)
    at unknown (suppressed.js:194:10)
    at unknown (suppressed.js:315:20)
    at unknown (suppressed.js:309:12)
    at unknown (suppressed.js:284:9)
    at unknown (suppressed.js:223:10)
    at unknown (suppressed.js:188:23)

[DanielRosenwasser]

Fixed by #47798.