DWARF codes assigned for Algol 68

We just got official DWARF codes assigned to Algol 68, and adapted the GCC front-end to use them. For DWARF 5, DW_LANG_Algol68 = 0x44. For DWARF 6, DW_LNAME_Algol68 = 0x2e with versioning schema YYYY, starting with 1973 for the original Revised language. The language extensions we are working on will be encoded in subsequent versions, 2025 etc. DWARF issue 250304.1 .