Extracts MemoryLruCache to a separate crate (#6693)

util/memory_cache/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "memory_cache"
+version = "0.1.0"
+authors = ["Parity Technologies <admin@parity.io>"]
+description = "An LRU-cache which operates on memory used"
+license = "GPL3"
+
+[dependencies]
+heapsize = "0.4"
+lru-cache = "0.1"

util/memory_cache/src/lib.rs

@@ -18,6 +18,9 @@
 //! crate.
 // TODO: push changes upstream in a clean way.
 
+extern crate heapsize;
+extern crate lru_cache;
+
 use heapsize::HeapSizeOf;
 use lru_cache::LruCache;
 

util/src/lib.rs

@@ -116,7 +116,6 @@ extern crate log as rlog;
 pub mod misc;
 pub mod overlaydb;
 pub mod journaldb;
-pub mod cache;
 
 pub use misc::*;
 pub use hashdb::*;