report_fatal_error has been marked "@deprecated" in its comment, but
the function itself is not marked with [[deprecated]] yet. This
causes warnings like:
llvm/include/llvm/Support/ErrorHandling.h:61:6: error: declaration
is marked with '@deprecated' command but does not have a deprecation
attribute [-Werror,-Wdocumentation-deprecated-sync]
llvm/include/llvm/Support/Error.h:738:6: error: declaration is
marked with '@deprecated' command but does not have a deprecation
attribute [-Werror,-Wdocumentation-deprecated-sync]
This patch disables the warning while we migrate away from
report_fatal_error.
47218eadd8