typecheck: name methods in field diagnostics

tests/test_validate_typecheck_diagnostics.py

@@ -170,6 +170,18 @@ class ValidateTypecheckDiagnosticsTests(unittest.TestCase):
             MODULE.EXPECTED_OK,
         )
 
+    def test_includes_method_text_field_assignment_diagnostic_fixture(self):
+        self.assertIn(
+            "tests/typecheck_method_text_field_assignment_bad.claro",
+            MODULE.EXPECTED,
+        )
+
+    def test_includes_method_text_field_assignment_success_fixture(self):
+        self.assertIn(
+            "tests/typecheck_method_text_field_assignment_good.claro",
+            MODULE.EXPECTED_OK,
+        )
+
     def test_release_validation_runs_method_call_fixture(self):
         result = subprocess.run(
             [str(ROOT / "claro"), "validate"],

tests/typecheck_method_text_field_assignment_bad.claro

@@ -0,0 +1,9 @@
+CLASS Player
+    HAS name TEXT
+    TEACH rename
+        SET name 123
+    END
+END
+
+NEW Player player
+DO player.rename

tests/typecheck_method_text_field_assignment_good.claro

@@ -0,0 +1,9 @@
+CLASS Player
+    HAS name TEXT
+    TEACH rename
+        SET name "Ada"
+    END
+END
+
+NEW Player player
+DO player.rename