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
270 B
Text
8 lines
270 B
Text
phashmap_inst_coherence.lean:12:53-12:54: error: Application type mismatch: In the application
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m.find?
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the argument
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m
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has type
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@PersistentHashMap Nat Nat instBEqOfDecidableEq instHashableNat
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but is expected to have type
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@PersistentHashMap Nat Nat ?m natDiffHash
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