8424ddbb3e
This PR improves the “expected type mismatch” error message by omitting the type's types when they are defeq, and putting them into separate lines when not. I found it rather tediuos to parse the error message when the expected type is long, because I had to find the `:` in the middle of a large expression somewhere. Also, when both are of sort `Prop` or `Type` it doesn't add much value to print the sort (and it’s only one hover away anyways).
4 lines
174 B
Text
4 lines
174 B
Text
1057.lean:9:2-9:28: error: Dependent elimination failed: Type mismatch when solving this alternative: it has type
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motive t Int
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but is expected to have type
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motive t x✝
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