1734: Add get_locus function for abstract class MetaItemInner. r=CohenArthur a=TuringKi
This commit adds virtual function get_locus to base class MetaItemInner, which is helpful when we need to print diagnostics on some sub-classes of MetaItemInner.
This commit is split from pr https://github.com/Rust-GCC/gccrs/pull/1718.
Signed-off-by: Xiao Ma <mxlol233@outlook.com>
Co-authored-by: mxlol233 <mxlol233@outlook.com>