context2: Fix namespacing of Context

Author: tailhook

examples/context.rs

@@ -6,7 +6,7 @@ use std::env;
 use std::num::ParseIntError;
 use std::path::{Path, PathBuf};
 
-use quick_error::{Context, ResultExt};
+use quick_error::ResultExt;
 
 quick_error! {
     #[derive(Debug)]

src/lib.rs

@@ -668,8 +668,11 @@ macro_rules! quick_error {
         { context($cvar:ident: $ctyp:ty, $fvar:ident: $ftyp:ty)
             -> ($( $texpr:expr ),*) $( $tail:tt )*}
     ) => {
-        impl<'a> From<Context<$ctyp, $ftyp>> for $name {
-            fn from(Context($cvar, $fvar): Context<$ctyp, $ftyp>) -> $name {
+        impl<'a> From<$crate::Context<$ctyp, $ftyp>> for $name {
+            fn from(
+                $crate::Context($cvar, $fvar): $crate::Context<$ctyp, $ftyp>)
+                -> $name
+            {
                 $name::$item($( $texpr ),*)
             }
         }