bevy_reflect: Fix misplaced impls (#6829)

# Objective

> Followup to [this](https://github.com/bevyengine/bevy/pull/6755#discussion_r1032671178) comment

Rearrange the impls in the `impls/std.rs` file.

The issue was that I had accidentally misplaced the impl for `Option<T>` and put it between the `Cow<'static, str>` impls. This is just a slight annoyance and readability issue.

## Solution

Move the `Option<T>` and `&'static Path` impls around to be more readable.

crates/bevy_reflect/src/impls/std.rs

@@ -668,166 +668,6 @@ impl_array_get_type_registration! {
     30 31 32
 }
 
-impl Reflect for Cow<'static, str> {
-    fn type_name(&self) -> &str {
-        std::any::type_name::<Self>()
-    }
-
-    fn get_type_info(&self) -> &'static TypeInfo {
-        <Self as Typed>::type_info()
-    }
-
-    fn into_any(self: Box<Self>) -> Box<dyn Any> {
-        self
-    }
-
-    fn as_any(&self) -> &dyn Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn Any {
-        self
-    }
-
-    fn into_reflect(self: Box<Self>) -> Box<dyn Reflect> {
-        self
-    }
-
-    fn as_reflect(&self) -> &dyn Reflect {
-        self
-    }
-
-    fn as_reflect_mut(&mut self) -> &mut dyn Reflect {
-        self
-    }
-
-    fn apply(&mut self, value: &dyn Reflect) {
-        let value = value.as_any();
-        if let Some(value) = value.downcast_ref::<Self>() {
-            *self = value.clone();
-        } else {
-            panic!("Value is not a {}.", std::any::type_name::<Self>());
-        }
-    }
-
-    fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>> {
-        *self = value.take()?;
-        Ok(())
-    }
-
-    fn reflect_ref(&self) -> ReflectRef {
-        ReflectRef::Value(self)
-    }
-
-    fn reflect_mut(&mut self) -> ReflectMut {
-        ReflectMut::Value(self)
-    }
-
-    fn reflect_owned(self: Box<Self>) -> ReflectOwned {
-        ReflectOwned::Value(self)
-    }
-
-    fn clone_value(&self) -> Box<dyn Reflect> {
-        Box::new(self.clone())
-    }
-
-    fn reflect_hash(&self) -> Option<u64> {
-        let mut hasher = crate::ReflectHasher::default();
-        Hash::hash(&std::any::Any::type_id(self), &mut hasher);
-        Hash::hash(self, &mut hasher);
-        Some(hasher.finish())
-    }
-
-    fn reflect_partial_eq(&self, value: &dyn Reflect) -> Option<bool> {
-        let value = value.as_any();
-        if let Some(value) = value.downcast_ref::<Self>() {
-            Some(std::cmp::PartialEq::eq(self, value))
-        } else {
-            Some(false)
-        }
-    }
-}
-
-impl Reflect for &'static Path {
-    fn type_name(&self) -> &str {
-        std::any::type_name::<Self>()
-    }
-
-    fn get_type_info(&self) -> &'static TypeInfo {
-        <Self as Typed>::type_info()
-    }
-
-    fn into_any(self: Box<Self>) -> Box<dyn Any> {
-        self
-    }
-
-    fn as_any(&self) -> &dyn Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn Any {
-        self
-    }
-
-    fn into_reflect(self: Box<Self>) -> Box<dyn Reflect> {
-        self
-    }
-
-    fn as_reflect(&self) -> &dyn Reflect {
-        self
-    }
-
-    fn as_reflect_mut(&mut self) -> &mut dyn Reflect {
-        self
-    }
-
-    fn apply(&mut self, value: &dyn Reflect) {
-        let value = value.as_any();
-        if let Some(&value) = value.downcast_ref::<Self>() {
-            *self = value;
-        } else {
-            panic!("Value is not a {}.", std::any::type_name::<Self>());
-        }
-    }
-
-    fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>> {
-        *self = value.take()?;
-        Ok(())
-    }
-
-    fn reflect_ref(&self) -> ReflectRef {
-        ReflectRef::Value(self)
-    }
-
-    fn reflect_mut(&mut self) -> ReflectMut {
-        ReflectMut::Value(self)
-    }
-
-    fn reflect_owned(self: Box<Self>) -> ReflectOwned {
-        ReflectOwned::Value(self)
-    }
-
-    fn clone_value(&self) -> Box<dyn Reflect> {
-        Box::new(*self)
-    }
-
-    fn reflect_hash(&self) -> Option<u64> {
-        let mut hasher = crate::ReflectHasher::default();
-        Hash::hash(&std::any::Any::type_id(self), &mut hasher);
-        Hash::hash(self, &mut hasher);
-        Some(hasher.finish())
-    }
-
-    fn reflect_partial_eq(&self, value: &dyn Reflect) -> Option<bool> {
-        let value = value.as_any();
-        if let Some(value) = value.downcast_ref::<Self>() {
-            Some(std::cmp::PartialEq::eq(self, value))
-        } else {
-            Some(false)
-        }
-    }
-}
-
 impl<T: FromReflect> GetTypeRegistration for Option<T> {
     fn get_type_registration() -> TypeRegistration {
         TypeRegistration::of::<Option<T>>()
@@ -1074,6 +914,86 @@ impl<T: FromReflect> Typed for Option<T> {
     }
 }
 
+impl Reflect for Cow<'static, str> {
+    fn type_name(&self) -> &str {
+        std::any::type_name::<Self>()
+    }
+
+    fn get_type_info(&self) -> &'static TypeInfo {
+        <Self as Typed>::type_info()
+    }
+
+    fn into_any(self: Box<Self>) -> Box<dyn Any> {
+        self
+    }
+
+    fn as_any(&self) -> &dyn Any {
+        self
+    }
+
+    fn as_any_mut(&mut self) -> &mut dyn Any {
+        self
+    }
+
+    fn into_reflect(self: Box<Self>) -> Box<dyn Reflect> {
+        self
+    }
+
+    fn as_reflect(&self) -> &dyn Reflect {
+        self
+    }
+
+    fn as_reflect_mut(&mut self) -> &mut dyn Reflect {
+        self
+    }
+
+    fn apply(&mut self, value: &dyn Reflect) {
+        let value = value.as_any();
+        if let Some(value) = value.downcast_ref::<Self>() {
+            *self = value.clone();
+        } else {
+            panic!("Value is not a {}.", std::any::type_name::<Self>());
+        }
+    }
+
+    fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>> {
+        *self = value.take()?;
+        Ok(())
+    }
+
+    fn reflect_ref(&self) -> ReflectRef {
+        ReflectRef::Value(self)
+    }
+
+    fn reflect_mut(&mut self) -> ReflectMut {
+        ReflectMut::Value(self)
+    }
+
+    fn reflect_owned(self: Box<Self>) -> ReflectOwned {
+        ReflectOwned::Value(self)
+    }
+
+    fn clone_value(&self) -> Box<dyn Reflect> {
+        Box::new(self.clone())
+    }
+
+    fn reflect_hash(&self) -> Option<u64> {
+        let mut hasher = crate::ReflectHasher::default();
+        Hash::hash(&std::any::Any::type_id(self), &mut hasher);
+        Hash::hash(self, &mut hasher);
+        Some(hasher.finish())
+    }
+
+    fn reflect_partial_eq(&self, value: &dyn Reflect) -> Option<bool> {
+        let value = value.as_any();
+        if let Some(value) = value.downcast_ref::<Self>() {
+            Some(std::cmp::PartialEq::eq(self, value))
+        } else {
+            Some(false)
+        }
+    }
+}
+
 impl Typed for Cow<'static, str> {
     fn type_info() -> &'static TypeInfo {
         static CELL: NonGenericTypeInfoCell = NonGenericTypeInfoCell::new();
@@ -1102,6 +1022,86 @@ impl FromReflect for Cow<'static, str> {
     }
 }
 
+impl Reflect for &'static Path {
+    fn type_name(&self) -> &str {
+        std::any::type_name::<Self>()
+    }
+
+    fn get_type_info(&self) -> &'static TypeInfo {
+        <Self as Typed>::type_info()
+    }
+
+    fn into_any(self: Box<Self>) -> Box<dyn Any> {
+        self
+    }
+
+    fn as_any(&self) -> &dyn Any {
+        self
+    }
+
+    fn as_any_mut(&mut self) -> &mut dyn Any {
+        self
+    }
+
+    fn into_reflect(self: Box<Self>) -> Box<dyn Reflect> {
+        self
+    }
+
+    fn as_reflect(&self) -> &dyn Reflect {
+        self
+    }
+
+    fn as_reflect_mut(&mut self) -> &mut dyn Reflect {
+        self
+    }
+
+    fn apply(&mut self, value: &dyn Reflect) {
+        let value = value.as_any();
+        if let Some(&value) = value.downcast_ref::<Self>() {
+            *self = value;
+        } else {
+            panic!("Value is not a {}.", std::any::type_name::<Self>());
+        }
+    }
+
+    fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>> {
+        *self = value.take()?;
+        Ok(())
+    }
+
+    fn reflect_ref(&self) -> ReflectRef {
+        ReflectRef::Value(self)
+    }
+
+    fn reflect_mut(&mut self) -> ReflectMut {
+        ReflectMut::Value(self)
+    }
+
+    fn reflect_owned(self: Box<Self>) -> ReflectOwned {
+        ReflectOwned::Value(self)
+    }
+
+    fn clone_value(&self) -> Box<dyn Reflect> {
+        Box::new(*self)
+    }
+
+    fn reflect_hash(&self) -> Option<u64> {
+        let mut hasher = crate::ReflectHasher::default();
+        Hash::hash(&std::any::Any::type_id(self), &mut hasher);
+        Hash::hash(self, &mut hasher);
+        Some(hasher.finish())
+    }
+
+    fn reflect_partial_eq(&self, value: &dyn Reflect) -> Option<bool> {
+        let value = value.as_any();
+        if let Some(value) = value.downcast_ref::<Self>() {
+            Some(std::cmp::PartialEq::eq(self, value))
+        } else {
+            Some(false)
+        }
+    }
+}
+
 impl Typed for &'static Path {
     fn type_info() -> &'static TypeInfo {
         static CELL: NonGenericTypeInfoCell = NonGenericTypeInfoCell::new();