Restore Deref implementation for ProcessHandle

Author: acj

src/lib.rs

@@ -387,6 +387,7 @@ mod platform {
     use std::convert::TryFrom;
     use std::io;
     use std::mem;
+    use std::ops::Deref;
     use std::os::raw::c_void;
     use std::os::windows::io::{AsRawHandle, RawHandle};
     use std::process::Child;
@@ -406,6 +407,14 @@ mod platform {
     #[derive(Clone, Eq, PartialEq, Hash)]
     pub struct ProcessHandle(Arc<ProcessHandleInner>);
 
+    impl Deref for ProcessHandle {
+        type Target = HANDLE;
+
+        fn deref(&self) -> &Self::Target {
+            &self.0 .0
+        }
+    }
+
     impl Drop for ProcessHandleInner {
         fn drop(&mut self) {
             unsafe { CloseHandle(self.0) };