error-tree 0.3.7

This crate let's us use the `error_tree!` proc macro for ergonomic error hierarchy definition
Documentation 
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//#![warn(unused_imports)]
//#![allow(dead_code)]
extern crate proc_macro;

#[macro_use] mod imports; use imports::*;

xp!{conversion_chain}
xp!{error_enum}
xp!{error_field}
xp!{error_tree_parse}
xp!{error_tree_visitor}
xp!{error_tree}
xp!{error_variant}
xp!{errors}
xp!{from_impl_generation_config}
xp!{from_impl_generation_config_emitter}
xp!{types}
xp!{validate}

#[proc_macro]
pub fn error_tree(input: TokenStream) -> TokenStream {

    let error_tree = parse_macro_input!(input as ErrorTree);

    error_tree.into_token_stream().into()
}