Sample error message in WPE build (for reference)

In file included from /app/webkit/Source/WTF/wtf/NativePromise.cpp:27:
/app/webkit/Source/WTF/wtf/NativePromise.h:892:78: error: use of undeclared identifier 'nullptr_t'; did you mean 'std::nullptr_t'?
                    return invokeWithVoidOrWithArg(WTFMove(resolveFunction), nullptr_t());
                                                                             ^
/usr/lib/gcc/x86_64-unknown-linux-gnu/12.2.0/../../../../include/c++/12.2.0/x86_64-unknown-linux-gnu/bits/c++config.h:302:29: note: 'std::nullptr_t' declared here
  typedef decltype(nullptr)     nullptr_t;
                                ^
In file included from /app/webkit/Source/WTF/wtf/NativePromise.cpp:27:
/app/webkit/Source/WTF/wtf/NativePromise.h:913:82: error: use of undeclared identifier 'nullptr_t'; did you mean 'std::nullptr_t'?
                    return invokeWithVoidOrWithArg(thisVal.get(), resolveMethod, nullptr_t());
                                                                                 ^
/usr/lib/gcc/x86_64-unknown-linux-gnu/12.2.0/../../../../include/c++/12.2.0/x86_64-unknown-linux-gnu/bits/c++config.h:302:29: note: 'std::nullptr_t' declared here
  typedef decltype(nullptr)     nullptr_t;
                                ^
2 errors generated.

Pull request: https://github.com/WebKit/WebKit/pull/18708

Committed 268954@main (e8659754092e): <https://commits.webkit.org/268954@main>

Reviewed commits have been landed. Closing PR #18708 and removing active labels.

<rdar://problem/116551780>