Andrew Kelley 799fedf612 stage2: pass some error union tests
* Value: rename `error_union` to `eu_payload` and clarify the intended
   usage in the doc comments. The way error unions is represented with
   Value is fixed to not have ambiguous values.
 * Fix codegen for error union constants in all the backends.
 * Implement the AIR instructions having to do with error unions in the
   LLVM backend.
2021-08-07 20:34:28 -07:00
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2020-10-31 12:21:49 +02:00