[Text Analytics] Improve message of RequestFailedException when there are multiple errors

[joseharriaga]

Consider the following example:

Azure.RequestFailedException : Failed to process task after several retry
Status: 200 (OK)
ErrorCode: InternalServerError

Additional Information:
Target: #/tasks/items/0
error-0: InternalServerError: Failed to process task after several retry
error-1: InternalServerError: Failed to process task after several retry

Content:
{"jobId":"b8446157-f12f-408d-861a-b4fc5010ba06","lastUpdatedDateTime":"2023-03-08T03:06:23Z","createdDateTime":"2023-03-08T03:06:03Z","expirationDateTime":"2023-03-09T03:06:03Z","status":"partiallySucceeded","errors":[{"code":"InternalServerError","message":"Failed to process task after several retry","target":"#/tasks/items/0"},{"code":"InternalServerError","message":"Failed to process task after several retry","target":"#/tasks/items/1"}],"tasks":{"completed":3,"failed":2,"inProgress":0,"total":5,"items":[{"kind":"PiiEntityRecognitionLROResults","lastUpdateDateTime":"2023-03-08T03:06:04.4079436Z","status":"failed"},{"kind":"EntityRecognitionLROResults","lastUpdateDateTime":"2023-03-08T03:06:04.2836089Z","status":"failed"},{"kind":"KeyPhraseExtractionLROResults","lastUpdateDateTime":"2023-03-08T03:06:05.9435944Z","status":"succeeded","results":{"documents":[{"id":"0","keyPhrases":["Elon Musk","CEO","SpaceX","Tesla"],"warnings":[]},{"id":"1","keyPhrases":["Tesla stock"],"warnings":[]}],"errors":[],"modelVersion":"2022-10-01"}},{"kind":"EntityLinkingLROResults","lastUpdateDateTime":"2023-03-08T03:06:23.6921064Z","status":"succeeded","results":{"documents":[{"id":"0","entities":[{"bingId":"ce6414c0-f9f0-b48b-31f9-42a7dab4db59","name":"Elon Musk","matches":[{"text":"Elon Musk","offset":0,"length":9,"confidenceScore":0.94}],"language":"en","id":"Elon Musk","url":"https://en.wikipedia.org/wiki/Elon_Musk","dataSource":"Wikipedia"},{"bingId":"627fa43a-d963-2c69-46ae-de521d27f9b9","name":"SpaceX","matches":[{"text":"SpaceX","offset":24,"length":6,"confidenceScore":0.63}],"language":"en","id":"SpaceX","url":"https://en.wikipedia.org/wiki/SpaceX","dataSource":"Wikipedia"},{"bingId":"732e1de9-8d5c-15ed-7f0d-7e2169dc9859","name":"Tesla, Inc.","matches":[{"text":"Tesla","offset":35,"length":5,"confidenceScore":0.47}],"language":"en","id":"Tesla, Inc.","url":"https://en.wikipedia.org/wiki/Tesla,_Inc.","dataSource":"Wikipedia"}],"warnings":[]},{"id":"1","entities":[{"bingId":"732e1de9-8d5c-15ed-7f0d-7e2169dc9859","name":"Tesla, Inc.","matches":[{"text":"Tesla","offset":0,"length":5,"confidenceScore":0.05}],"language":"en","id":"Tesla, Inc.","url":"https://en.wikipedia.org/wiki/Tesla,_Inc.","dataSource":"Wikipedia"}],"warnings":[]}],"errors":[],"modelVersion":"2021-06-01"}},{"kind":"SentimentAnalysisLROResults","lastUpdateDateTime":"2023-03-08T03:06:06.1779551Z","status":"succeeded","results":{"documents":[{"id":"0","sentiment":"neutral","confidenceScores":{"positive":0.01,"neutral":0.99,"negative":0.0},"sentences":[{"sentiment":"neutral","confidenceScores":{"positive":0.01,"neutral":0.99,"negative":0.0},"offset":0,"length":41,"text":"Elon Musk is the CEO of SpaceX and Tesla."}],"warnings":[]},{"id":"1","sentiment":"neutral","confidenceScores":{"positive":0.0,"neutral":1.0,"negative":0.0},"sentences":[{"sentiment":"neutral","confidenceScores":{"positive":0.0,"neutral":1.0,"negative":0.0},"offset":0,"length":36,"text":"Tesla stock is up by 400% this year."}],"warnings":[]}],"errors":[],"modelVersion":"2022-11-01"}}]}}

Headers:
x-envoy-upstream-service-time: 175
apim-request-id: a3a07b78-398d-44e3-9730-6c95193039a4
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
X-Content-Type-Options: nosniff
x-ms-region: REDACTED
Date: Wed, 08 Mar 2023 03:06:24 GMT
Content-Length: 3056
Content-Type: application/json; charset=utf-8

Data:
Target: #/tasks/items/0
error-0: InternalServerError: Failed to process task after several retry
error-1: InternalServerError: Failed to process task after several retry

Notice how the "Additional Information" only references "#/tasks/items/0" but the errors in the "Content" also include "#/tasks/items/1".