collections: Move push/pop to MutableSeq

Implement for Vec, DList, RingBuf. Add MutableSeq to the prelude.

Since the collections traits are in the prelude most consumers of
these methods will continue to work without change.

[breaking-change]

3 files changed, 3 insertions, 3 deletions

diff --git a/src/libstd/path/mod.rs b/src/libstd/path/mod.rs
index ececfab5f74..0c93f8e6de9 100644
--- a/src/libstd/path/mod.rs
+++ b/src/libstd/path/mod.rs
@@ -65,7 +65,7 @@ println!("path exists: {}", path.exists());
 
 #![experimental]
 
-use collections::Collection;
+use collections::{Collection, MutableSeq};
 use c_str::CString;
 use clone::Clone;
 use fmt;
diff --git a/src/libstd/path/posix.rs b/src/libstd/path/posix.rs
index 007686aa05c..877ca2c7e01 100644
--- a/src/libstd/path/posix.rs
+++ b/src/libstd/path/posix.rs
@@ -13,7 +13,7 @@
 use c_str::{CString, ToCStr};
 use clone::Clone;
 use cmp::{PartialEq, Eq, PartialOrd, Ord, Ordering};
-use collections::Collection;
+use collections::{Collection, MutableSeq};
 use from_str::FromStr;
 use hash;
 use io::Writer;
diff --git a/src/libstd/path/windows.rs b/src/libstd/path/windows.rs
index 4a6ed561233..d9b802b38fd 100644
--- a/src/libstd/path/windows.rs
+++ b/src/libstd/path/windows.rs
@@ -16,7 +16,7 @@ use ascii::AsciiCast;
 use c_str::{CString, ToCStr};
 use clone::Clone;
 use cmp::{PartialEq, Eq, PartialOrd, Ord, Ordering};
-use collections::Collection;
+use collections::{Collection, MutableSeq};
 use from_str::FromStr;
 use hash;
 use io::Writer;