Treat nil "error" argument as "try?"

Description

https://github.com/Swiftify-Corp/Swiftify/issues/118

I think it's better to treat nil "error" argument as "try?" and make result optional. Because initially user skips error handling.

Environment

None

Assignee

Alex Petuschak

Reporter

Ivan Kh

Labels

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Git Branch Name

None

Fix versions

Priority

Medium
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