&[op] is broken in precompiled code

[pmurias]

in Bug.pm6:

sub bug is export {
  &[!<];
}

in bug6.p6

use Bug;
bug()(9, 9)

perl6-m bug6.p6
Cannot invoke this object (REPR: Null; VMNull)
in block at bug.p6 line 2

The same problem also occurs in the JS and JVM backends

The cause of the problem is that &[!<] works by compiling and running code that calls &METAOP_NEGATE and the closure it returns doesn't have the outer ctx serialized properly.

[timo]

This bug seems to have been around for a really, really long time, so at least it isn't a regression

[vrurg]

Tested on 2019.07.1 – fails. HEAD passes.

Closing via MoarVM/MoarVM#1209 and 7e3d023