Add impls for new std::io::{Read,Write} structs

src/input_stream.rs

@@ -210,12 +210,17 @@ impl<O: IsA<InputStream> + IsA<glib::Object> + Clone + 'static> InputStreamExtMa
     }
 }
 
+#[derive(Debug, PartialEq, Eq, Hash, Clone)]
 pub struct InputStreamRead<T: InputStreamExtManual>(T);
 
 impl <T: InputStreamExtManual> InputStreamRead<T> {
     pub fn into_input_stream(self) -> T {
         self.0
     }
+
+    pub fn input_stream(&self) -> &T {
+        &self.0
+    }
 }
 
 impl <T: InputStreamExtManual> io::Read for InputStreamRead<T> {

src/output_stream.rs

@@ -186,12 +186,17 @@ impl<O: IsA<OutputStream> + IsA<glib::Object> + Clone + 'static> OutputStreamExt
     }
 }
 
+#[derive(Debug, PartialEq, Eq, Hash, Clone)]
 pub struct OutputStreamWrite<T: OutputStreamExt>(T);
 
 impl <T: OutputStreamExt> OutputStreamWrite<T> {
     pub fn into_output_stream(self) -> T {
         self.0
     }
+
+    pub fn output_stream(&self) -> &T {
+        &self.0
+    }
 }
 
 impl <T: OutputStreamExt> io::Write for OutputStreamWrite<T> {

tests/std_io_copy.rs

@@ -1,3 +1,5 @@
+#![cfg(feature = "v2_36")]
+
 extern crate glib;
 extern crate gio;