Set the file's filename and directory in init_ast_file

src/parser.hpp

@@ -99,7 +99,11 @@ struct AstFile {
 	Scope *      scope;
 
 	Ast *        pkg_decl;
+
 	String       fullpath;
+	String       filename;
+	String       directory;
+
 	Tokenizer    tokenizer;
 	Array<Token> tokens;
 	isize        curr_token_index;
@@ -109,6 +113,7 @@ struct AstFile {
 	Token        package_token;
 	String       package_name;
 
+
 	// >= 0: In Expression
 	// <  0: In Control Clause
 	// NOTE(bill): Used to prevent type literals in control clauses