Remove explicit S type from component functions (#5722)

I ended up forgetting this as part of #5275.

crates/fuzzing/src/generators/component_types.rs

@@ -173,7 +173,7 @@ macro_rules! define_static_api_test {
             let mut store: Store<Box<dyn Any>> = Store::new(&engine, Box::new(()));
             let instance = linker.instantiate(&mut store, &component).unwrap();
             let func = instance
-                .get_typed_func::<($($param,)*), R, _>(&mut store, EXPORT_FUNCTION)
+                .get_typed_func::<($($param,)*), R>(&mut store, EXPORT_FUNCTION)
                 .unwrap();
 
             while input.arbitrary()? {

crates/wasmtime/src/component/func.rs

@@ -185,7 +185,7 @@ impl Func {
     /// # use wasmtime::component::Func;
     /// # use wasmtime::Store;
     /// # fn foo(func: &Func, store: &mut Store<()>) -> anyhow::Result<()> {
-    /// let typed = func.typed::<(), (), _>(&store)?;
+    /// let typed = func.typed::<(), ()>(&store)?;
     /// typed.call(store, ())?;
     /// # Ok(())
     /// # }
@@ -198,7 +198,7 @@ impl Func {
     /// # use wasmtime::component::Func;
     /// # use wasmtime::Store;
     /// # fn foo(func: &Func, mut store: Store<()>) -> anyhow::Result<()> {
-    /// let typed = func.typed::<(&str,), (String,), _>(&store)?;
+    /// let typed = func.typed::<(&str,), (String,)>(&store)?;
     /// let ret = typed.call(&mut store, ("Hello, ",))?.0;
     /// println!("returned string was: {}", ret);
     /// # Ok(())
@@ -211,17 +211,16 @@ impl Func {
     /// # use wasmtime::component::Func;
     /// # use wasmtime::Store;
     /// # fn foo(func: &Func, mut store: Store<()>) -> anyhow::Result<()> {
-    /// let typed = func.typed::<(u32, Option<&str>, &[u8]), (bool,), _>(&store)?;
+    /// let typed = func.typed::<(u32, Option<&str>, &[u8]), (bool,)>(&store)?;
     /// let ok: bool = typed.call(&mut store, (1, Some("hello"), b"bytes!"))?.0;
     /// println!("return value was: {ok}");
     /// # Ok(())
     /// # }
     /// ```
-    pub fn typed<Params, Return, S>(&self, store: S) -> Result<TypedFunc<Params, Return>>
+    pub fn typed<Params, Return>(&self, store: impl AsContext) -> Result<TypedFunc<Params, Return>>
     where
         Params: ComponentNamedList + Lower,
         Return: ComponentNamedList + Lift,
-        S: AsContext,
     {
         self._typed(store.as_context().0)
     }

crates/wasmtime/src/component/instance.rs

@@ -85,20 +85,19 @@ impl Instance {
     /// # Panics
     ///
     /// Panics if `store` does not own this instance.
-    pub fn get_typed_func<Params, Results, S>(
+    pub fn get_typed_func<Params, Results>(
         &self,
-        mut store: S,
+        mut store: impl AsContextMut,
         name: &str,
     ) -> Result<TypedFunc<Params, Results>>
     where
         Params: ComponentNamedList + Lower,
         Results: ComponentNamedList + Lift,
-        S: AsContextMut,
     {
         let f = self
             .get_func(store.as_context_mut(), name)
             .ok_or_else(|| anyhow!("failed to find function export `{}`", name))?;
-        Ok(f.typed::<Params, Results, _>(store)
+        Ok(f.typed::<Params, Results>(store)
             .with_context(|| format!("failed to convert function `{}` to given type", name))?)
     }