Add impl ErrorConvert for ContextError

[Lexicality]

Quick fix for #498

I didn't touch TreeError because I couldn't see a particularly easy way of converting input types on it other than rewriting the entire tree which seemed a bit over the top.

I added the InputError -> ContextError conversion because I could rather than because I needed it, I can remove it if you don't want it.

[Lexicality]

Huh, weird. It wouldn't build on my machine either but I assumed I had something configured wrong. 🤔

[epage]

I added the InputError -> ContextError conversion because I could rather than because I needed it, I can remove it if you don't want it.

Let's remove that for now as its unrelated to the problem at hand and it would be good to understand the use case for why someone is doing it.

[Lexicality]

I added the InputError -> ContextError conversion because I could rather than because I needed it, I can remove it if you don't want it.

Let's remove that for now as its unrelated to the problem at hand and it would be good to understand the use case for why someone is doing it.

done

[coveralls]

Pull Request Test Coverage Report for Build 8643968260

Details

• 0 of 2 (0.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.005%) to 41.817%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/error.rs	0	2	0.0%

Totals
Change from base Build 8541132511:	0.005%
Covered Lines:	1275
Relevant Lines:	3049

---

💛 - Coveralls

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 41.81%. Comparing base (8512ab7) to head (40a0a15).

Files	Patch %	Lines
src/error.rs	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #500   +/-   ##
=======================================
  Coverage   41.81%   41.81%           
=======================================
  Files          18       18           
  Lines        3047     3049    +2     
=======================================
+ Hits         1274     1275    +1     
- Misses       1773     1774    +1     

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