IGNORE_GCC_WARNINGS_BEGIN only applies to gcc and in this case clang supports the same stringop-truncation warning.
Pull request: https://github.com/WebKit/WebKit/pull/15152
Committed 265414@main (9f8cdbea8cd8): <https://commits.webkit.org/265414@main> Reviewed commits have been landed. Closing PR #15152 and removing active labels.
<rdar://problem/111171190>