test: cover typed text object-field assignments

docs/ROADMAP.md

@@ -34,7 +34,7 @@ See `CURRENT_STATUS.md` for the detailed feature matrix.
 3. Expand validation around typecheck diagnostics and package/networking safety. Current Forgejo/Gitea CI runs the documented release gates (`claro validate`, typecheck diagnostics validation, version convention validation, package security validation, compiler warning validation, and CI workflow coverage validation). The compiler warning validator rebuilds `src/claro.c` and blocks path-truncation warnings; the workflow coverage validator checks executable `run` steps rather than comments and requires its own command. Current package safety validation covers safe project creation, rejecting unsafe project names during `claro new`, safe manifest/lockfile creation, rejecting unsafe package names during `package add`, detecting unsafe package names already present in `claro.project` during `package doctor`, refusing to write lockfile data for unsafe package names during `package lock`, making `package list` fail instead of displaying unsafe package entries as normal package names, making `package init` fail instead of reporting the project ready when unsafe package names are already present, making `package add` fail before changing files when unsafe package names are already present, making `package remove` fail instead of reporting success when unsafe package names remain during lockfile refresh, allowing `package remove` to remove an exact unsafe package entry so learners can repair a bad `claro.project`, making `package doctor` reject stale lockfile checksums for listed packages, and making `package doctor` reject lockfile package entries that are not listed in `claro.project`. Current function validation covers correct checked calls, wrong-type arguments, missing checked-argument diagnostics, missing unchecked-argument diagnostics for simple functions in both modern `DO greet` and empty compatibility `CALL greet WITH` forms, extra-argument diagnostics, and beginner-facing unknown-function diagnostics for mistyped modern `DO` and compatibility `CALL ... WITH` calls; current object-method parameter validation covers correct modern `DO object.method ...` and compatibility `CALL object.method WITH ...` checked calls, wrong-type diagnostics for both call forms, checked methods after another method in the same class, missing and extra checked-argument diagnostics including the extra-argument case for a checked method after another method in the same class, missing unchecked-argument diagnostics for simple object methods, missing-object guidance when `DO player.method ...` or compatibility `CALL object.method WITH ...` appears before `NEW` even if the method name is also wrong, and class-specific unknown-method diagnostics for both modern and compatibility calls when a learner calls a method the class does not declare; current object-field validation covers direct NUMBER/TEXT/YESNO field-assignment positives, direct object-field `CHECK TYPE` metadata positives for NUMBER/TEXT/YESNO fields, negative NUMBER/TEXT/YESNO field metadata mismatches, NUMBER/TEXT/YESNO-expectation unknown-field `CHECK TYPE` diagnostics, direct wrong-type field assignment diagnostics, field collection when a `HAS` field appears after a simple method, direct unknown-field diagnostics for NUMBER/TEXT/YESNO values, a beginner-facing fallback for unknown fields assigned from expressions whose type is not inferable yet, and missing-object diagnostics for both `SET object.field value` and `CHECK TYPE object.field IS TYPE` before `NEW`.
 3a. Keep package diagnostics actionable: invalid package manifest format fields now name the file and explain how to repair it, separately from an absent manifest. Keep package validation honest by checking that the project manifest has one non-empty project name, that the project and each listed package manifest declare the exact supported manifest version, package version, local source, and expected package name, and that lockfiles declare exactly one current release version.
 3b. Keep package security validation in Forgejo/Gitea CI so unsafe names, exact manifest-version/name/version/checksum mismatches, missing manifests, duplicate project manifest versions and packages, duplicate lock packages, duplicate package manifest names, versions, and checksums, and lockfile errors remain release blockers.
-4. Add small examples for each foundation feature before adding bigger syntax. The object-field foundation now includes positive and negative validation for explicitly typed assignments and field expressions such as `SET player.score player.name`, `SET player.score player.score + 1`, `SET player.name player.score + 1`, explicitly typed field assignments, explicit typed assignments to undeclared fields, simple and chained aliases such as `SET alias player`, `SET backup alias`, followed by `SET backup.score ...` or `CHECK TYPE backup.score IS ...`, chained aliases in object-method calls through both modern `DO` and compatibility `CALL ... WITH` forms (including a dedicated positive modern `DO` fixture), and arithmetic/text expression mismatches; typed containers also accept a map with nested type metadata when it is added to a `LIST OF MAP`; broader alias/control-flow checking remains planned.
+4. Add small examples for each foundation feature before adding bigger syntax. The object-field foundation now includes positive and negative validation for explicitly typed NUMBER/TEXT assignments and field expressions such as `SET player.score player.name`, `SET player.score player.score + 1`, `SET player.name player.score + 1`, explicitly typed field assignments, explicit typed assignments to undeclared fields, simple and chained aliases such as `SET alias player`, `SET backup alias`, followed by `SET backup.score ...` or `CHECK TYPE backup.score IS ...`, chained aliases in object-method calls through both modern `DO` and compatibility `CALL ... WITH` forms (including a dedicated positive modern `DO` fixture), field-to-field, compound arithmetic field expressions, and arithmetic/text expression mismatches; typed containers also accept a map with nested type metadata when it is added to a `LIST OF MAP`; broader alias/control-flow checking remains planned.
 5. Keep the focused typecheck validator complete: the method-body field diagnostic fixtures are now exercised by `claro validate` alongside the standalone diagnostic validator; continue wiring each new `typecheck_*.claro` fixture into both gates. Modern and compatibility unknown-field expression diagnostics now have matching focused coverage, and explicitly typed unknown method-field assignments have matching modern and compatibility fixtures with the expected `HAS field TYPE` repair hint.
 -6. Continue narrowing expression diagnostics: known TEXT operands now remain visible through arithmetic, with focused numeric-subtraction, numeric-division, and numeric-multiplication positives plus text-operand addition, subtraction, multiplication, and division coverage. Typed function returns now include positive subtraction and division examples alongside multiplication, including compatibility `TAKES` / `LEARNED` numeric-addition, subtraction, division, and multiplication return fixtures. Text concatenation into TEXT fields is covered in both operand orders, including field-to-field concatenation. Each numeric operator names the text operand and explains that it needs NUMBER values. Compatibility method return diagnostics now cover addition, subtraction, division, and multiplication. `CHECK TYPE` also rejects misspelled expected type names.
 - Keep typed method return examples balanced: numeric addition, subtraction, division, and multiplication now have dedicated positive compatibility `TAKES` / `LEARNED` method fixtures in the focused validator, alongside compatibility addition, subtraction, and division mismatch coverage and the existing method return mismatch diagnostics.