accept @pure @nothrow @return attributes

[WalterBright]

Not much to it.

[Hackerpilot]

😄
Looks like at least part of my DIP64 is happening.

[andralex]

Auto-merge toggled on

[andralex]

@WalterBright take a look at the failures.

[Orvid]

The failures I see in the tests are from the DIP 25 PR.

[WalterBright]

Here's the code that fails in src/rt/sections_elf_shared.d:

ThreadDSO* findThreadDSO(DSO* pdso)
{
    foreach (ref tdata; _loadedDSOs)
        if (tdata._pdso == pdso) return &tdata;
    return null;
}

Looks like a case not considered in DIP25, i.e. what to do about ref's in foreach statements.

[WalterBright]

Which has nothing to do with this PR.

[Orvid]

Instead you wanted the druntime PR. This one looks fine though.

[jmdavis]

I would point out that if this doesn't get reverted, then we need to update the error message relating to @ attributes accordingly: https://issues.dlang.org/show_bug.cgi?id=14064 . The message needs to be updated for @nogc regardless, but with this change, three more are missing from the list.