60881 #61145
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60881 #61145
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@microsoft-github-policy-service agree |
…0881 Syncing with upstream changes
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Fixes #60881
Solution:
src/compiler/checker.ts: Added a new condition to check if the source is valid for assignment and if target is assignable to source and report an error with an appropriate new diagnostic if it is constrained to be a subtype.
src/compiler/diagnosticMessages.json: Added a new diagnostic error message for types constrained to be subtypes of other types.