checker: minor cleanup in the checker.v (#12945)

vlib/v/checker/checker.v

@@ -54,13 +54,13 @@ pub mut:
 	nr_errors        int
 	nr_warnings      int
 	nr_notices       int
-	should_abort     bool // when too many errors/warnings/notices are accumulated, .should_abort becomes true. It is checked in statement/expression loops, so the checker can return early, instead of wasting time.
 	errors           []errors.Error
 	warnings         []errors.Warning
 	notices          []errors.Notice
 	error_lines      []int // to avoid printing multiple errors for the same line
 	expected_type    ast.Type
 	expected_or_type ast.Type // fn() or { 'this type' } eg. string. expected or block type
+	mod              string   // current module name
 	const_decl       string
 	const_deps       []string
 	const_names      []string
@@ -69,20 +69,20 @@ pub mut:
 	rlocked_names    []string // vars that are currently read-locked
 	in_for_count     int      // if checker is currently in a for loop
 	// checked_ident  string // to avoid infinite checker loops
+	should_abort   bool // when too many errors/warnings/notices are accumulated, .should_abort becomes true. It is checked in statement/expression loops, so the checker can return early, instead of wasting time.
 	returns        bool
 	scope_returns  bool
-	mod            string // current module name
+	is_builtin_mod bool // true inside the 'builtin', 'os' or 'strconv' modules; TODO: remove the need for special casing this
-	is_builtin_mod bool   // true inside the 'builtin', 'os' or 'strconv' modules; TODO: remove the need for special casing this
+	is_generated   bool // true for `[generated] module xyz` .v files
-	is_generated   bool   // true for `[generated] module xyz` .v files
+	inside_unsafe  bool // true inside `unsafe {}` blocks
-	inside_unsafe  bool   // true inside `unsafe {}` blocks
+	inside_const   bool // true inside `const ( ... )` blocks
-	inside_const   bool   // true inside `const ( ... )` blocks
+	inside_anon_fn bool // true inside `fn() { ... }()`
-	inside_anon_fn bool   // true inside `fn() { ... }()`
+	inside_ref_lit bool // true inside `a := &something`
-	inside_ref_lit bool   // true inside `a := &something`
+	inside_defer   bool // true inside `defer {}` blocks
-	inside_defer   bool   // true inside `defer {}` blocks
+	inside_fn_arg  bool // `a`, `b` in `a.f(b)`
-	inside_fn_arg  bool   // `a`, `b` in `a.f(b)`
+	inside_ct_attr bool // true inside `[if expr]`
-	inside_ct_attr bool   // true inside `[if expr]`
+	skip_flags     bool // should `#flag` and `#include` be skipped
-	skip_flags     bool   // should `#flag` and `#include` be skipped
+	fn_level       int  // 0 for the top level, 1 for `fn abc() {}`, 2 for a nested fn, etc
-	fn_level       int    // 0 for the top level, 1 for `fn abc() {}`, 2 for a nested fn, etc
 	ct_cond_stack  []ast.Expr
 mut:
 	stmt_level int // the nesting level inside each stmts list;
@@ -90,29 +90,28 @@ mut:
 	// 1 for statements directly at each inner scope level;
 	// increases for `x := if cond { statement_list1} else {statement_list2}`;
 	// increases for `x := optfn() or { statement_list3 }`;
-	is_last_stmt                     bool
 	files                            []ast.File
-	expr_level                       int  // to avoid infinite recursion segfaults due to compiler bugs
+	expr_level                       int // to avoid infinite recursion segfaults due to compiler bugs
-	inside_sql                       bool // to handle sql table fields pseudo variables
 	cur_orm_ts                       ast.TypeSymbol
 	error_details                    []string
 	vmod_file_content                string     // needed for @VMOD_FILE, contents of the file, *NOT its path**
-	vweb_gen_types                   []ast.Type // vweb route checks
-	prevent_sum_type_unwrapping_once bool       // needed for assign new values to sum type, stopping unwrapping then
 	loop_label                       string     // set when inside a labelled for loop
+	vweb_gen_types                   []ast.Type // vweb route checks
 	timers                           &util.Timers = util.get_timers()
 	comptime_fields_default_type     ast.Type
 	comptime_fields_type             map[string]ast.Type
 	fn_scope                         &ast.Scope = voidptr(0)
 	main_fn_decl_node                ast.FnDecl
 	match_exhaustive_cutoff_limit    int = 10
-	// TODO: these are here temporarily and used for deprecations; remove soon
+	is_last_stmt                     bool
-	using_new_err_struct     bool
+	prevent_sum_type_unwrapping_once bool // needed for assign new values to sum type, stopping unwrapping then
-	inside_selector_expr     bool
+	using_new_err_struct             bool
-	inside_println_arg       bool
+	need_recheck_generic_fns         bool // need recheck generic fns because there are cascaded nested generic fn
-	inside_decl_rhs          bool
+	inside_sql                       bool // to handle sql table fields pseudo variables
-	inside_if_guard          bool // true inside the guard condition of `if x := opt() {}`
+	inside_selector_expr             bool
-	need_recheck_generic_fns bool // need recheck generic fns because there are cascaded nested generic fn
+	inside_println_arg               bool
+	inside_decl_rhs                  bool
+	inside_if_guard                  bool // true inside the guard condition of `if x := opt() {}`
 }
 
 pub fn new_checker(table &ast.Table, pref &pref.Preferences) &Checker {