chore: fix Brittle type definitions

[achou11]

Noticed issues with the definitions for t.exception and all of the ones that are coercible

[gmaclennan]

Sorry I've read through this twice now and can't spot the types that have changed, could you explain it to me?

[achou11]

Sorry I've read through this twice now and can't spot the types that have changed, could you explain it to me?

yeah it's fixing t.exception.all() and the ones where you can use .coercively() e.g. t.is.coercively(). the syntax used in the current implementation (i.e. the string keys) does not properly represent this interface. for example, right now ts won't complain if you do t['exception.all'](...) but it doesn't work in brittle when trying to run the test, since you can't access a nested key with this syntax

[gmaclennan]

Ah thanks completely missed that! Makes sense now