Error -> Defect for defects (#13908)

* Error -> Defect for defects

The distinction between Error and Defect is subjective,
context-dependent and somewhat arbitrary, so when looking at an
exception, it's hard to guess what it is - this happens often when
looking at a `raises` list _without_ opening the corresponding
definition and digging through layers of inheritance.

With the help of a little consistency in naming, it's at least possible
to start disentangling the two error types and the standard lib can set
a good example here.
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Jacek Sieka 2020-04-28 19:56:01 +02:00 • committed by GitHub
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@ -1599,9 +1599,9 @@ proc quoteExpr*(a: string): string {.inline.} =
## can be used for quoting expressions in error msgs.
"'" & a & "'"
proc genFieldError*(field: PSym, disc: PSym): string =
proc genFieldDefect*(field: PSym, disc: PSym): string =
## this needs to be in a module accessible by jsgen, ccgexprs, and vm to
## provide this error msg FieldError; msgs would be better but it does not
## provide this error msg FieldDefect; msgs would be better but it does not
## import ast
result = field.name.s.quoteExpr & " is not accessible using discriminant " &
disc.name.s.quoteExpr & " of type " &