Migrate smrl-treasury and srml-upgrade-key to the 2018 edition (#1725)

substrate/srml/support/procedural/src/lib.rs

@@ -21,16 +21,6 @@
 #![recursion_limit="256"]
 
 extern crate proc_macro;
-extern crate proc_macro2;
-
-#[macro_use]
-extern crate syn;
-
-#[macro_use]
-extern crate quote;
-
-#[macro_use]
-extern crate srml_support_procedural_tools;
 
 mod storage;
 

substrate/srml/support/procedural/src/storage/mod.rs

@@ -19,8 +19,9 @@
 // end::description[]
 
 use srml_support_procedural_tools::syn_ext as ext;
+use srml_support_procedural_tools::{ToTokens, Parse, custom_keyword, custom_keyword_impl};
 
-use syn::Ident;
+use syn::{Ident, Token};
 use syn::token::CustomKeyword;
 
 pub mod transformation;

substrate/srml/support/procedural/src/storage/transformation.rs

@@ -31,8 +31,10 @@ use syn::{
 	parse::{
 		Error,
 		Result,
-	}
+	},
+	parse_macro_input,
 };
+use quote::quote;
 
 use super::*;