Add typedefs in codegen, globals is working

new_ast.cpp

@@ -363,9 +363,9 @@ ast_init(Token *pos, Token_Kind op, Ast_Atom *ident, Ast_Expr *expr){
 }
 
 function Ast_Array *
-ast_array(Token *pos, Ast_Expr *base){
+ast_array(Token *pos, Ast_Expr *expr){
   AST_NEW(Array, ARRAY, pos);
-  result->base = base;
+  result->expr = expr;
   return result;
 }