Bump dartdoc from 6.3.0 to 7.0.0 (#2118)

* Bump dartdoc from 6.3.0 to 7.0.0

Bumps [dartdoc](https://github.com/dart-lang/dartdoc) from 6.3.0 to 7.0.0.
- [Release notes](https://github.com/dart-lang/dartdoc/releases)
- [Changelog](https://github.com/dart-lang/dartdoc/blob/main/CHANGELOG.md)
- [Commits](https://github.com/dart-lang/dartdoc/commits)

---
updated-dependencies:
- dependency-name: dartdoc
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* Fix AST visitor for parameter types, they are no longer considered SimpleIdentifier

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Carlos Israel Ortiz García <goodwine@google.com>

pubspec.yaml

@@ -42,7 +42,7 @@ dev_dependencies:
   archive: ^3.1.2
   crypto: ^3.0.0
   dart_style: ^2.0.0
-  dartdoc: ^6.0.0
+  dartdoc: ">=6.0.0 <8.0.0"
   grinder: ^0.9.0
   node_preamble: ^2.0.2
   lints: ^2.0.0

tool/grind/synchronize.dart

@@ -247,6 +247,9 @@ class _Visitor extends RecursiveAstVisitor<void> {
     } else if (node.name2.lexeme == "Module") {
       _skipNode(node);
       _buffer.write("Module<Callable>");
+    } else if (node.typeArguments == null) {
+      _skip(node.name2);
+      _buffer.write(_synchronizeName(node.name2.lexeme));
     } else {
       super.visitNamedType(node);
     }