core: Inherit possible string functionality

This moves as much allocation as possible from teh std::str module into
core::str. This includes essentially all non-allocating functionality, mostly
iterators and slicing and such.

This primarily splits the Str trait into only having the as_slice() method,
adding a new StrAllocating trait to std::str which contains the relevant new
allocation methods. This is a breaking change if any of the methods of "trait
Str" were overriden. The old functionality can be restored by implementing both
the Str and StrAllocating traits.

[breaking-change]

1 files changed, 0 insertions, 1 deletions

diff --git a/src/libstd/rt/args.rs b/src/libstd/rt/args.rs
index 17e6f6b7698..ac1692e6bb3 100644
--- a/src/libstd/rt/args.rs
+++ b/src/libstd/rt/args.rs
@@ -70,7 +70,6 @@ mod imp {
     use owned::Box;
     use unstable::mutex::{StaticNativeMutex, NATIVE_MUTEX_INIT};
     use mem;
-    #[cfg(not(test))] use str::StrSlice;
     #[cfg(not(test))] use ptr::RawPtr;
 
     static mut global_args_ptr: uint = 0;