Report all missing module, not just the first or last

This is a usability issue bothering me for a while, so I’ll write it down (and potentially attempt to solve it myself).

Given Imports.hs with

import ABC
import XYZ

with ghc -c Imports.hs I get

Imports.hs:1:1:
    Failed to load interface for ‛ABC’
    Use -v to see a list of the files searched for.

When I would want

Imports.hs:1:1:
    Failed to load interface for ‛ABC’
    Use -v to see a list of the files searched for.

Imports.hs:2:1:
    Failed to load interface for ‛XYZ’
    Use -v to see a list of the files searched for.

Interestingly, with -c ghc reports (just) the first, with --make (just) the last import...

Trac metadata

Trac field	Value
Version	7.6.3
Type	FeatureRequest
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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