Warn on out-of-range literals in pattern matches too

We have these nice warnings for numeric literal expressions that are out of range of their type:

Prelude> 100000000000000000000000000000000 :: Int

<interactive>:1:1: warning: [-Woverflowed-literals]
    Literal 100000000000000000000000000000000 is out of the Int range -9223372036854775808..9223372036854775807

but nothing for numeric patterns:

Prelude> (\x -> case (x :: Int) of 100000000000000000000000000000000 -> 0) 8 :: Int

<interactive>:3:8: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In a case alternative:
        Patterns not matched:
            p where p is not one of {100000000000000000000000000000000}
*** Exception: <interactive>:3:8-64: Non-exhaustive patterns in case

Trac metadata

Trac field	Value
Version	8.1
Type	FeatureRequest
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture