Update to latest indexical

Author: willcrichton

crates/rustc_utils/Cargo.toml

@@ -24,7 +24,7 @@ intervaltree = "0.2"
 serde = { version = "1", features = ["derive"], optional = true }
 textwrap = { version = "0.16", optional = true }
 ts-rs = { version = "7", optional = true }
-indexical = { version = "0.9.3", default-features = false, features = ["rustc"], optional = true }
+indexical = { version = "0.10.4", default-features = false, features = ["rustc"], optional = true }
 
 [dev-dependencies]
 rustc_utils = { path = ".", features = ["test"] }

crates/rustc_utils/src/mir/location_or_arg.rs

@@ -42,15 +42,15 @@ impl From<Local> for LocationOrArg {
 
 #[cfg(feature = "indexical")]
 pub mod index {
-  use indexical::{IndexedDomain, ToIndex, bitset::rustc::IndexSet, define_index_type};
+  use indexical::{IndexedDomain, ToIndex, bitset::rustc::ArcIndexSet, define_index_type};
 
   use super::*;
 
   define_index_type! {
     pub struct LocationOrArgIndex for LocationOrArg = u32;
   }
 
-  pub type LocationOrArgSet = IndexSet<LocationOrArg>;
+  pub type LocationOrArgSet = ArcIndexSet<LocationOrArg>;
   pub type LocationOrArgDomain = IndexedDomain<LocationOrArg>;
 
   pub struct CustomMarker;