Add test of generic remote derive with getter

Currently fails to compile.

    error[E0107]: missing generics for struct `StructGeneric`
       --> test_suite/tests/test_remote.rs:181:18
        |
    181 | #[serde(remote = "remote::StructGeneric")]
        |                  ^^^^^^^^^^^^^^^^^^^^^^^ expected 1 generic argument
        |
    note: struct defined here, with 1 generic parameter: `T`
       --> test_suite/tests/test_remote.rs:78:16
        |
    78  |     pub struct StructGeneric<T> {
        |                ^^^^^^^^^^^^^ -
    help: add missing generic argument
        |
    181 | #[serde(remote = StructGeneric<T>)]
        |                  ~~~~~~~~~~~~~~~~

Author: dtolnay

test_suite/tests/test_remote.rs

@@ -79,6 +79,12 @@ mod remote {
         pub value: T,
     }
 
+    impl<T> StructGeneric<T> {
+        pub fn get_value(&self) -> &T {
+            &self.value
+        }
+    }
+
     pub enum EnumGeneric<T> {
         Variant(T),
     }
@@ -171,6 +177,13 @@ struct StructPubDef {
     b: remote::Unit,
 }
 
+#[derive(Serialize, Deserialize)]
+#[serde(remote = "remote::StructGeneric")]
+struct StructGenericWithGetterDef<T> {
+    #[serde(getter = "remote::StructGeneric::get_value")]
+    value: T,
+}
+
 #[derive(Serialize, Deserialize)]
 #[serde(remote = "remote::StructGeneric<u8>")]
 struct StructConcrete {
@@ -206,3 +219,9 @@ impl From<StructPrivDef> for remote::StructPriv {
         remote::StructPriv::new(def.a, def.b)
     }
 }
+
+impl<T> From<StructGenericWithGetterDef<T>> for remote::StructGeneric<T> {
+    fn from(def: StructGenericWithGetterDef<T>) -> Self {
+        remote::StructGeneric { value: def.value }
+    }
+}