bigerror 0.9.x

[mkatychev]

• Renamed Reportable to ThinContext, the ZST value is now an associated type:
  

  bigerror/bigerror/src/lib.rs

  Lines 32 to 36 in cda942e

  	pub trait ThinContext
  	where
  	Self: Sized + Context,
  	{
  	const VALUE: Self;

• Added bigerror-derive to allow deriving ThinContext:
  

  bigerror/bigerror/src/context.rs

  Lines 105 to 107 in cda942e

  	#[derive(ThinContext)]
  	#[bigerror(crate)]
  	pub struct AssertionError;

  
  Note: #[bigerror(crate)] is only needed inside the bigerror crate, normal impls will use it like so:

  #[derive(ThinContext)]
  pub struct MyError;

• Renamed ThinContext::with_* to use ThinContext::attach_*: cda942e

• Removed old reportable, from_report, and to_report macros

[jkleinknox]

This is much more ergonomic. I like it. What do you think of the name ErrorContext instead of ThinContext?

[mkatychev]

@jkleinknox Context already implements Error: https://docs.rs/error-stack/latest/error_stack/trait.Context.html

the prefix here (whether thin or some other adjective) should denote a subset of Context whose value is known at compile time.