[bug #68546] bytecode-interpreter: pt-bytecode-vm.cc uses methods removed in C++20

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Follow-up Comment #3, bug #68546 (group octave):=0A=0AI tried your patch in=
 Linux (Fedora) and I see no issues (but I didnt saw them=0Abefore either),=
 the VM just works.=0AOn Windows I got stuck with another issue but hopeful=
ly I can test there soon.=0A=0A=0A    _____________________________________=
__________________=0A=0AReply to this item at:=0A=0A  <https://savannah.gnu=
.org/bugs/?68546>=0A=0A_______________________________________________=0AMe=
ssage sent via Savannah=0Ahttps://savannah.gnu.org/=0A
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