[clang-tidy] Check request: modernize-use-std-construct-at

[denzor200]

Needs a check that will find an inplace constructor calling and will suggest to use std::construct_at instead.

BEFORE:

alignas(T) unsigned char buffer[sizeof(T)];
auto* p = new(buffer) T{}; // WARNING AND FIX-IT

AFTER:

alignas(T) unsigned char buffer[sizeof(T)];
auto* p = std::construct_at(reinterpret_cast<T*>(buffer));

[llvmbot]

@llvm/issue-subscribers-clang-tidy

Author: Denis Mikhailov (denzor200)

Needs a check that will find an inplace constructor calling and will suggest to use `std::construct_at` instead.

BEFORE:

alignas(T) unsigned char buffer[sizeof(T)];
auto* p = new(buffer) T{}; // WARNING AND FIX-IT

AFTER:

alignas(T) unsigned char buffer[sizeof(T)];
auto* p = std::construct_at(reinterpret_cast<T*>(buffer));

[EugeneZelenko]

The performance optimizations here are quite clever. Nice engineering work!

@tstellar: Seems to be another bot account.