hg-core: impl TryFrom<PathBuff> for HgPathBuf

Differential Revision: https://phab.mercurial-scm.org/D9048

rust/hg-core/src/utils/hg_path.rs

@@ -6,6 +6,7 b''
 // GNU General Public License version 2 or any later version.
 
 use std::borrow::Borrow;
+use std::convert::TryFrom;
 use std::ffi::{OsStr, OsString};
 use std::fmt;
 use std::ops::Deref;
@@ -515,6 +516,13 b' pub fn path_to_hg_path_buf<P: AsRef<Path'
     Ok(buf)
 }
 
+impl TryFrom<PathBuf> for HgPathBuf {
+    type Error = HgPathError;
+    fn try_from(path: PathBuf) -> Result<Self, Self::Error> {
+        path_to_hg_path_buf(path)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;