Add rustc::middle::cstrcache for getting c string bufs safely

We continue to leak string buffers in trans so this creates a way to get c
string buffers from strings while guaranteeing that they are not freed before
use.

Hopefully this can be made efficient in the istr regime.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/comp/rustc.rc b/src/comp/rustc.rc
index c9f0d2f067b..0dd9f004ad8 100644
--- a/src/comp/rustc.rc
+++ b/src/comp/rustc.rc
@@ -30,6 +30,7 @@ mod middle {
     mod freevars;
     mod shape;
     mod gc;
+    mod cstrcache;
 
     mod tstate {
         mod ck;