Allow interleaving of STDOUT and STDERR check lines. Put STDOUT lines
after the line they're attached to, and STDERR lines before. If no
STDOUT check line is attached to any line, then put them all at the end
of the file instead.
This is intended to better handle the case where stdout contains
unreplaced mentions of line numbers, and also reflects that stdout is
typically a consequence of the test rather than commentary on it, so
placing it after the test seems likely to read better.
This fixes a bug where Explorer would not detect when:
- an implementation used a method to implement a class function in an interface
- an implementation used a class function to implement a method in an interface
- an implementation method used `addr self` when the interface method did not
- an interface method used `addr self` when the implementation method did not
at type checking time. This would then cause a crash at runtime.
Closes#2857
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Co-authored-by: Richard Smith <richard@metafoo.co.uk>
Richard Smith
josh11bandRichard Smith