use `RandomState::with_seeds` replace `AHasher::default` (#2254)

* use `RandomState::with_seeds` replace `AHasher::default`

* remove history checkout

* update seeds to `1,2,3,4`

crates/egui/src/id.rs

@@ -45,16 +45,16 @@ impl Id {
 
     /// Generate a new [`Id`] by hashing some source (e.g. a string or integer).
     pub fn new(source: impl std::hash::Hash) -> Id {
-        use std::hash::Hasher;
-        let mut hasher = epaint::ahash::AHasher::default();
+        use std::hash::{BuildHasher, Hasher};
+        let mut hasher = epaint::ahash::RandomState::with_seeds(1, 2, 3, 4).build_hasher();
         source.hash(&mut hasher);
         Id(hasher.finish())
     }
 
     /// Generate a new [`Id`] by hashing the parent [`Id`] and the given argument.
     pub fn with(self, child: impl std::hash::Hash) -> Id {
-        use std::hash::Hasher;
-        let mut hasher = epaint::ahash::AHasher::default();
+        use std::hash::{BuildHasher, Hasher};
+        let mut hasher = epaint::ahash::RandomState::with_seeds(1, 2, 3, 4).build_hasher();
         hasher.write_u64(self.0);
         child.hash(&mut hasher);
         Id(hasher.finish())

crates/epaint/src/util/mod.rs

@@ -5,10 +5,8 @@ pub use ordered_float::*;
 /// Hash the given value with a predictable hasher.
 #[inline]
 pub fn hash(value: impl std::hash::Hash) -> u64 {
-    use std::hash::Hasher as _;
-    let mut hasher = ahash::AHasher::default();
-    value.hash(&mut hasher);
-    hasher.finish()
+    use ahash::RandomState;
+    RandomState::with_seeds(1, 2, 3, 4).hash_one(value)
 }
 
 /// Hash the given value with the given hasher.