Typo in return type of a function gives misleading error message

[xoltar]

If you write the wrong thing for a return type (e.g. bool instead of Bool), the error message is phrased in terms of 'iType', a word the user never wrote.

Steps to Reproduce

error : a -> bool
error _ = True

Expected Behavior

Idris> :l error
Type checking ./error.idr
error.idr:3:11-14:
|
3 | error _ = True
| ~~~~
When checking right hand side of error with expected type
bool (return type of error.error)

Type mismatch between
Bool (Type of True)
and
bool (Expected type)

error.idr.txt

Holes: Main.error

Observed Behavior

Idris> :l error
Type checking ./error.idr
error.idr:3:11-14:
|
3 | error _ = True
| ~~~~
When checking right hand side of error with expected type
iType

Type mismatch between
Bool (Type of True)
and
iType (Expected type)

Holes: Main.error