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).
8 lines
199 B
Text
8 lines
199 B
Text
modBug.lean:1:48-1:64: error: Application type mismatch: In the application
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Nat.zero_ne_one (Nat.mod_zero 1)
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the argument
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Nat.mod_zero 1
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has type
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1 % 0 = 1
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but is expected to have type
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0 = 1
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