fix(amazonq): validationException if empty supplemental context chunk is sent to the service

[Will-ShaoHua]

Problem

• LSP might return chunk with empty string, which will cause validation exception if such supplemental chunk is sent to the service
• pretty logging
  updated log string example

2024-11-04 11:36:38.767 [debug] CodeWhispererSupplementalContext:
    isUtg: false,
    isProcessTimeout: false,
    contentsLength: 5208,
    latency: 50.849000096321106
    strategy: OpenTabs_BM25
    Chunk 0:
        Path: /Volumes/workplace/ide/aws-toolkit-vscode-staging/packages/core/src/codewhisperer/service/keyStrokeHandler.ts
        Length: 1777
        Score: 75.30026364918442
    Chunk 1:
        Path: /Volumes/workplace/ide/aws-toolkit-vscode-staging/packages/core/src/codewhisperer/service/referenceInlineProvider.ts
        Length: 1437
        Score: 63.365755359719486
    Chunk 2:
        Path: /Volumes/workplace/ide/aws-toolkit-vscode-staging/packages/core/src/codewhisperer/service/inlineCompletionItemProvider.ts
        Length: 1994
        Score: 47.207284002878936

Solution

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License: I confirm that my contribution is made under the terms of the Apache 2.0 license.

[github-actions]

• This pull request modifies code in src/* but no tests were added/updated.
  • Confirm whether tests should be added or ensure the PR description explains why tests are not required.

[Will-ShaoHua]

moved to upstream caller supplementalContextUtil.ts

[Will-ShaoHua]

should probably refactor the entire structure of supplementalContextUtil.ts, crossfileContextUtil.ts, utgUtil.ts, it's hard to write unit test cases if everything is 1st class functions instead of classes and methods.

[justinmk3]

Nice! Thanks for thinking about the log format, that helps with troubleshooting for both users and devs.