AST refactoring

ASTPlayground/MainForm.fmx

@@ -32,7 +32,7 @@ object Form1: TForm1
     end
     object PrettyPrintButton: TButton
       Position.X = 24.000000000000000000
-      Position.Y = 168.000000000000000000
+      Position.Y = 200.000000000000000000
       TabOrder = 3
       Text = 'Print'
       TextSettings.Trimming = None
@@ -40,7 +40,7 @@ object Form1: TForm1
     end
     object DebugButton: TButton
       Position.X = 24.000000000000000000
-      Position.Y = 198.000000000000000000
+      Position.Y = 230.000000000000000000
       TabOrder = 4
       Text = 'Debug'
       TextSettings.Trimming = None
@@ -59,7 +59,7 @@ object Form1: TForm1
     end
     object ShowScopeBox: TCheckBox
       Position.X = 32.000000000000000000
-      Position.Y = 224.000000000000000000
+      Position.Y = 256.000000000000000000
       TabOrder = 6
       Text = 'Scope'
     end