Refactor statements

src/lang/Nub.Lang/Frontend/Parsing/Statements/WhileNode.cs

@@ -0,0 +1,9 @@
+using Nub.Lang.Frontend.Lexing;
+
+namespace Nub.Lang.Frontend.Parsing;
+
+public class WhileNode(IReadOnlyList<Token> tokens, ExpressionNode condition, BlockNode body) : StatementNode(tokens)
+{
+    public ExpressionNode Condition { get; } = condition;
+    public BlockNode Body { get; } = body;
+}