feat: resolve names without shadowing

source/ast/ast.hon

@@ -345,6 +345,10 @@ add_invalid_decl proc(builder @mut Builder, span Span, diagnostic DiagnosticId)
     }, span)
 }
 
+node_count proc(tree @Tree) usize {
+    return tree.storage.nodes.items.len
+}
+
 package_decl_count proc(tree @Tree) usize {
     root :: get_node(&tree.storage, tree.root)
     debug.assert(root.kind == .package)