Fix diagnostic code 69010 typo to 6910

[Copilot]

This PR fixes a typo in the diagnostic code from 69010 to 6910 in the diagnosticMessages.json file.

Issue

The diagnostic message "module === 'AMD' or 'UMD' or 'System' or 'ES6', then 'Classic', Otherwise 'Node'" had code 69010, which appears to be a typo based on the sequential numbering pattern of surrounding diagnostic codes:

• Code 6909: "trueifcomposite, false otherwise"
• Code 69010: "module === 'AMD' or 'UMD' or 'System' or 'ES6', then 'Classic', Otherwise 'Node'" ← Should be 6910
• Code 6911: "Computed from the list of input files"
• Code 6912: "Platform specific"

Changes Made

• Fixed diagnostic code from 69010 to 6910 in src/compiler/diagnosticMessages.json
• Updated all localized files in src/loc/lcl/ to use the correct code 6910
• Regenerated all derived files to ensure consistency

Verification

• ✅ Build completes successfully
• ✅ All tests pass
• ✅ Linting passes
• ✅ Code formatting is correct
• ✅ No references to the old code 69010 remain in the codebase

The fix is minimal and surgical - only changing the diagnostic code number while preserving all functionality and maintaining the sequential numbering pattern.

Fixes #61971.

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[RyanCavanaugh]

Not ideal to edit the lcl files but it doesn't really matter. LGTM.

Edit: Nah let's keep the git history clean on those

[Copilot]

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[RyanCavanaugh]

Revert all changes to the LCL files, these should not be edited by us

[Copilot]

Revert all changes to the LCL files, these should not be edited by us

Reverted all LCL file changes as requested. The main diagnosticMessages.json file still contains the fix (code 6910), but all LCL files have been restored to their original state. dc0ec58

[typescript-bot]

With 6.0 out as the final release vehicle for this codebase, we're closing all PRs that don't fit the merge criteria for post-6.0 patches. If you think this was a mistake and this PR fits the post-6.0 patch criteria, please post to the 6.0 iteration issue with details (specifically, which PR and which patch criteria it satisfies).

Next steps for PRs:

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