Clean up more clippy.

src/serde/de.rs

@@ -1,7 +1,9 @@
 //! Implement deserialization support of [`Dynamic`][crate::Dynamic] for [`serde`].
 
 use crate::types::dynamic::Union;
-use crate::{Dynamic, ImmutableString, LexError, Position, RhaiError, RhaiResultOf, ERR};
+use crate::{
+    Dynamic, ImmutableString, LexError, Position, RhaiError, RhaiResultOf, SmartString, ERR,
+};
 use serde::de::{Error, IntoDeserializer, Visitor};
 use serde::{Deserialize, Deserializer};
 #[cfg(feature = "no_std")]
@@ -420,7 +422,7 @@ impl<'de> Deserializer<'de> for &mut DynamicDeserializer<'de> {
             || self.type_error(),
             |map| {
                 _visitor.visit_map(IterateMap::new(
-                    map.keys().map(|key| key.as_str()),
+                    map.keys().map(SmartString::as_str),
                     map.values(),
                 ))
             },

src/serde/metadata.rs

@@ -181,7 +181,7 @@ impl ModuleMetadata<'_> {
 
 impl<'a> From<&'a crate::Module> for ModuleMetadata<'a> {
     fn from(module: &'a crate::Module) -> Self {
-        let mut functions: Vec<_> = module.iter_fn().map(|f| f.into()).collect();
+        let mut functions: Vec<_> = module.iter_fn().map(Into::into).collect();
         functions.sort();
 
         Self {