Properly handle overridden elements when parsing columns

moor_generator/lib/src/analyzer/dart/table_parser.dart

@@ -110,13 +110,21 @@ class TableParser {
   }
 
   Future<List<SpecifiedColumn>> _parseColumns(ClassElement element) {
-    final columns = element.allSupertypes
+    final columnNames = element.allSupertypes
         .map((t) => t.element)
         .followedBy([element])
         .expand((e) => e.fields)
-        .where((field) => isColumn(field.type) && field.getter != null);
+        .where((field) => isColumn(field.type) && field.getter != null)
+        .map((field) => field.name)
+        .toSet();
 
-    return Future.wait(columns.map((field) async {
+    final fields = columnNames.map((name) {
+      final getter = element.getGetter(name) ??
+          element.lookUpInheritedConcreteGetter(name, element.library);
+      return getter.variable;
+    });
+
+    return Future.wait(fields.map((field) async {
       final resolved = await base.loadElementDeclaration(field.getter);
       final node = resolved.node as MethodDeclaration;
 

moor_generator/test/analyzer/dart/table_parser_test.dart

@@ -53,7 +53,7 @@ void main() {
       }
       
       class Foos extends HasNameTable with IntIdTable {
-        
+        TextColumn get name => text().nullable()();
       }
       '''
     });
@@ -159,6 +159,7 @@ void main() {
   test('handles inheritance in column definitions', () async {
     final table = await parse('Foos');
 
+    expect(table.columns, hasLength(2));
     expect(table.columns.map((c) => c.name.name), containsAll(['id', 'name']));
   });
 }