Rename alloc_map_ref to alloc_map

src/librustc_mir/interpret/memory.rs

@@ -605,7 +605,7 @@ pub fn leak_report(&self) -> usize {
     }
 
     /// This is used by [priroda](https://github.com/oli-obk/priroda)
-    pub fn alloc_map_ref(&self) -> &M::MemoryMap {
+    pub fn alloc_map(&self) -> &M::MemoryMap {
         &self.alloc_map
     }
 }