Inline breakpoint support in core.

lib/runtime-core/src/state.rs

@@ -1,5 +1,6 @@
 use std::collections::BTreeMap;
 use std::ops::Bound::{Included, Unbounded};
+use crate::backend::Backend;
 
 #[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
 pub struct RegisterIndex(pub usize);
@@ -111,6 +112,7 @@ pub struct CodeVersion {
     pub baseline: bool,
     pub msm: ModuleStateMap,
     pub base: usize,
+    pub backend: Backend,
 }
 
 impl ModuleStateMap {