https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116253
--- Comment #11 from David Malcolm <dmalcolm at gcc dot gnu.org> --- An example of the nested diagnostics on Compiler Explorer: Trunk with -std=c++20 -fconcepts-diagnostics-depth=2 Text output (via -fdiagnostics-set-output=text:experimental-nesting=yes), showing indentation and bullet points: https://godbolt.org/z/xs4Gr6n6K SARIF output (via -fdiagnostics-format=sarif-stderr), showing nestingLevel properties: https://godbolt.org/z/zj17qKTee
