mruby-compiler: update mrb_parser_dump for variable-sized nodes

Modernize the parser dump functionality to support the post-NODE_VARIABLE
hybrid AST architecture with both variable-sized nodes and traditional
cons-list nodes.

Co-authored-by: Claude <noreply@anthropic.com>

mrbgems/mruby-compiler/core/codegen.c

@@ -4700,7 +4700,7 @@ static void
 gen_super_var(codegen_scope *s, node *varnode, int val)
 {
   struct mrb_ast_super_node *super_n = super_node(varnode);
-  node *tree = SUPER_NODE_ARGS(super_n);
+  node *tree = super_n->args;
 
   codegen_scope *s2 = s;
   int lv = 0;

mrbgems/mruby-compiler/core/node.h

@@ -433,7 +433,12 @@ struct mrb_ast_super_node {
 #define DEF_NODE_NAME(n) (def_node(n)->name)
 #define DEF_NODE_ARGS(n) (def_node(n)->args)
 #define DEF_NODE_BODY(n) (def_node(n)->body)
-
+#define DEF_NODE_LOCALS(n) (def_node(n)->locals)
+#define SDEF_NODE_NAME(n) (sdef_node(n)->name)
+#define SDEF_NODE_ARGS(n) (sdef_node(n)->args)
+#define SDEF_NODE_BODY(n) (sdef_node(n)->body)
+#define SDEF_NODE_LOCALS(n) (sdef_node(n)->locals)
+#define SDEF_NODE_OBJ(n) (sdef_node(n)->body)
 #define CLASS_NODE_NAME(n) (class_node(n)->name)
 #define CLASS_NODE_SUPERCLASS(n) (class_node(n)->superclass)
 #define CLASS_NODE_BODY(n) (class_node(n)->body)
@@ -463,9 +468,7 @@ struct mrb_ast_super_node {
 #define OR_NODE_RIGHT(n) (or_node(n)->right)
 
 #define RETURN_NODE_ARGS(n) (return_node(n)->args)
-
 #define YIELD_NODE_ARGS(n) (yield_node(n)->args)
-
 #define SUPER_NODE_ARGS(n) (super_node(n)->args)
 
 /* Variable-sized literal node structures */