tree 6b5cd103ce1b415e94d8e50db6e258e959084642
parent 064a107902e0b4cf79eb97487dffcf6250879c8c
author Corentin Jabot <Corentin.jabot@gmail.com> 1638381459 -0500
committer Copybara-Service <copybara-worker@google.com> 1638381720 -0800

[Clang] Fix nesting of discarded and immediate contexts.

In C++23, discarded statements and if consteval statements can nest
arbitrarily. To support that, we keep track of whether the parent of
the current evaluation context is discarded or immediate.

This is done at the construction of an evaluation context
to improve performance.

Fixes https://bugs.llvm.org/show_bug.cgi?id=52231

GitOrigin-RevId: 6eeda06c1d22da2b9fe96a2569a8a0f8e4f36880