Removed explicit hashbrown dependency

lib/runtime-core/src/backend.rs

@@ -15,7 +15,7 @@ use crate::{
 };
 use std::{any::Any, ptr::NonNull};
 
-use hashbrown::HashMap;
+use std::collections::HashMap;
 
 pub mod sys {
     pub use crate::sys::*;

lib/runtime-core/src/export.rs

@@ -2,7 +2,7 @@ use crate::{
     global::Global, instance::InstanceInner, memory::Memory, module::ExportIndex,
     module::ModuleInner, table::Table, types::FuncSig, vm,
 };
-use hashbrown::hash_map;
+use std::collections::hash_map;
 use std::sync::Arc;
 
 #[derive(Debug, Copy, Clone)]

lib/runtime-core/src/import.rs

@@ -1,5 +1,5 @@
 use crate::export::Export;
-use hashbrown::{hash_map::Entry, HashMap};
+use std::collections::{hash_map::Entry, HashMap};
 use std::collections::VecDeque;
 use std::{
     cell::{Ref, RefCell},

lib/runtime-core/src/module.rs

@@ -14,7 +14,7 @@ use crate::{
 };
 
 use crate::backend::CacheGen;
-use hashbrown::HashMap;
+use std::collections::HashMap;
 use indexmap::IndexMap;
 use std::sync::Arc;
 

lib/runtime-core/src/parse.rs

@@ -14,7 +14,7 @@ use crate::{
     },
     units::Pages,
 };
-use hashbrown::HashMap;
+use std::collections::HashMap;
 use std::fmt::Debug;
 use std::sync::{Arc, RwLock};
 use wasmparser::{

lib/runtime-core/src/sig_registry.rs

@@ -2,7 +2,7 @@ use crate::{
     structures::Map,
     types::{FuncSig, SigIndex},
 };
-use hashbrown::HashMap;
+use std::collections::HashMap;
 use lazy_static::lazy_static;
 use parking_lot::RwLock;
 use std::sync::Arc;

lib/runtime-core/src/vm.rs

@@ -14,7 +14,7 @@ use std::{
     sync::Once,
 };
 
-use hashbrown::HashMap;
+use std::collections::HashMap;
 
 /// The context of the currently running WebAssembly instance.
 ///
@@ -850,7 +850,7 @@ mod vm_ctx_tests {
         use crate::cache::Error as CacheError;
         use crate::typed_func::Wasm;
         use crate::types::{LocalFuncIndex, SigIndex};
-        use hashbrown::HashMap;
+        use std::collections::HashMap;
         use std::any::Any;
         use std::ptr::NonNull;
         struct Placeholder;