Add ParseError::with_input

[9999years]

This lets you replace the input field in a ParseError, e.g. to transform a ParseError<&str, E> into a ParseError<String, E>. I'd like this so that I can have an owned ParseError type, but only if a top-level parse fails.

[coveralls]

Pull Request Test Coverage Report for Build 11334127920

Details

• 1 of 4 (25.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.04%) to 41.568%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/error.rs	1	4	25.0%

Totals
Change from base Build 11107240362:	-0.04%
Covered Lines:	1299
Relevant Lines:	3125

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💛 - Coveralls

[epage]

We ask that new features start as issues to explore the underlying use case and requirements and then discuss how we want to solve the problem. We then move onto PRs to discuss the implementation.

[9999years]

Done: #606

I now see that you also told me to open an issue first (quite kindly) on #541 — apologies for making the same mistake twice. I assumed the change was small enough to be uncontroversial, but I can respect having all changes go through the same process.