Most of this migration was performed automatically with `zig fmt`. There
were a few exceptions which I had to manually fix:
* `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten
* `@truncate`'s fixup is incorrect for vectors
* Test cases are not formatted, and their error locations change
gitrev kubkon/zig-yaml 8cf8dc3bb901fac8189f441392fc0989ad14cf71
Calculate line and col info indexed by token index. We can then
re-use this info to track current column number (aka indentation
level) of each "key:value" pair (map) or "- element" (list).
This significantly cleans up the code, and leads naturally to
handling of unindented lists in tbd files.
This improves the ABI alignment resolution code.
This commit fully enables the MachO linker code in stage3. Note,
however, that there are still miscompilations in stage3.
