Related error spans for assignability checks · Issue #25030 · microsoft/TypeScript (original) (raw)

Now that we support multiple related spans for errors (#10489, #22789, #24548), we'd like to improve an existing error message.

Currently we have the following error for assignability checks:

Type '{0}' is not assignable to type '{1}'.
Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated.

@weswigham had some ideas to iterate on these error messages.