std.debug.Dwarf: use 66 as the (fake) MIPS PC register

32-63 conflict with the floating point registers. 64 and 65 are used for the
ac0 hi/lo registers.
9cd37a0696Alex Rønne Petersen committed on 10/7/2025, 2:47:57 PMparentf6403ed
2 files changedLine totals unavailable