fix string not match StrTplRef

Author: xuhuanzy

crates/emmylua_code_analysis/src/diagnostic/checker/check_field.rs

@@ -213,7 +213,7 @@ fn is_valid_member(
                 match &info.key {
                     LuaMemberKey::Expr(typ) => {
                         if typ.is_string() {
-                            if key_type_set.iter().any(|typ| typ.is_string()) {
+                            if key_type_set.iter().any(|typ| typ.is_string() || typ.is_str_tpl_ref()) {
                                 return Some(());
                             }
                         } else if typ.is_integer() {
@@ -223,7 +223,7 @@ fn is_valid_member(
                         }
                     }
                     LuaMemberKey::Name(_) => {
-                        if key_type_set.iter().any(|typ| typ.is_string()) {
+                        if key_type_set.iter().any(|typ| typ.is_string() || typ.is_str_tpl_ref()) {
                             return Some(());
                         }
                     }
@@ -304,7 +304,7 @@ fn get_key_types(typ: &LuaType) -> HashSet<LuaType> {
                     stack.push(t.clone());
                 }
             }
-            LuaType::Ref(_) => {
+            LuaType::StrTplRef(_) | LuaType::Ref(_) => {
                 type_set.insert(current_type);
             }
             _ => {}

crates/emmylua_code_analysis/src/diagnostic/test/undefined_field_test.rs

@@ -490,4 +490,22 @@ mod test {
         "#
         ));
     }
+
+    #[test]
+    fn test_generic_super() {
+        let mut ws = VirtualWorkspace::new();
+        assert!(ws.check_code_for(
+            DiagnosticCode::UndefinedField,
+            r#"
+            ---@generic Super: string
+            ---@param super? `Super`
+            local function declare(super)
+                ---@type table<string, string>
+                local config
+
+                local superClass = config[super]
+            end
+        "#
+        ));
+    }
 }

crates/emmylua_code_analysis/src/semantic/type_check/simple_type.rs

@@ -65,7 +65,7 @@ pub fn check_simple_type_compact(
             }
         }
         LuaType::String | LuaType::StringConst(_) => match compact_type {
-            LuaType::String | LuaType::StringConst(_) | LuaType::DocStringConst(_) => {
+            LuaType::String | LuaType::StringConst(_) | LuaType::DocStringConst(_) | LuaType::StrTplRef(_) => {
                 return Ok(());
             }
             LuaType::Ref(_) => {