Andrew Kelley 7b57454cc1 clean up error return tracing ... * error return tracing is disabled in release-fast mode * add @errorReturnTrace * zig build API changes build return type from `void` to `%void` * allow `void`, `noreturn`, and `u8` from main. closes #535		2018-01-15 00:01:02 -05:00
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issue_339	clean up error return tracing	2018-01-15 00:01:02 -05:00
pkg_import	clean up error return tracing	2018-01-15 00:01:02 -05:00
use_alias	clean up error return tracing	2018-01-15 00:01:02 -05:00