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SARIF "fix" objects SHOULD have a "description" property (§3.55.2) that describes the proposed fix, but currently GCC's SARIF output doesn't support this, and we don't capture this anywhere internally as we build fix-it hints in the compiler. Currently we can have zero or more instances of fixit_hint associated with a diagnostic, each representing an edit of a range of the source code. Ideally we would have an internal API that allowed for associating multiple fixes with a diagnostic, each with a description worded in terms of the source language (e.g. "Fix 'colour' mispelling of field 'color'"), and each consisting of multiple edited ranges. For now, this patch extends the sarif output sink so that it autogenerates descriptions of fix-it hints for simple cases of insertion, deletion, and replacement of a single range (e.g. "Replace 'colour' with 'color'"). gcc/ChangeLog: PR diagnostics/121986 * diagnostics/sarif-sink.cc: Include "intl.h". (sarif_builder::make_message_describing_fix_it_hint): New. (sarif_builder::make_fix_object): Attempt to auto-generate a description for fix-it hints. gcc/testsuite/ChangeLog: PR diagnostics/121986 * gcc.dg/sarif-output/extra-semicolon.c: New test. * gcc.dg/sarif-output/extra-semicolon.py: New test. * gcc.dg/sarif-output/missing-semicolon.py: Verify the description of the insertion fix-it hint. * libgdiagnostics.dg/test-fix-it-hint-c.py: Verify the description of the replacement fix-it hint. libcpp/ChangeLog: PR diagnostics/121986 * include/rich-location.h (fixit_hint::deletion_p): New accessor. (fixit_hint::replacement_p): New accessor. Signed-off-by: David Malcolm <dmalcolm@redhat.com>