parser: fix parsers producing codegen statements (for [flag] enum MyEnum{}) with mixed scope

vlib/v/parser/parser.v

@@ -1,6 +1,7 @@
 // Copyright (c) 2019-2022 Alexander Medvednikov. All rights reserved.
 // Use of this source code is governed by an MIT license
 // that can be found in the LICENSE file.
+[has_globals]
 module parser
 
 import v.scanner
@@ -89,6 +90,8 @@ mut:
 	codegen_text          string
 }
 
+__global codegen_files = []&ast.File{}
+
 // for tests
 pub fn parse_stmt(text string, table &ast.Table, scope &ast.Scope) ast.Stmt {
 	mut p := Parser{
@@ -312,8 +315,7 @@ pub fn (mut p Parser) parse() &ast.File {
 	// codegen
 	if p.codegen_text.len > 0 && !p.pref.is_fmt {
 		ptext := 'module ' + p.mod.all_after_last('.') + p.codegen_text
-		codegen_file := parse_text(ptext, p.file_name, p.table, p.comments_mode, p.pref)
-		stmts << codegen_file.stmts
+		codegen_files << parse_text(ptext, p.file_name, p.table, p.comments_mode, p.pref)
 	}
 
 	return &ast.File{
@@ -404,6 +406,10 @@ pub fn parse_files(paths []string, table &ast.Table, pref &pref.Preferences) []&
 		files << parse_file(path, table, .skip_comments, pref)
 		timers.show('parse_file $path')
 	}
+	if codegen_files.len > 0 {
+		files << codegen_files
+		codegen_files.clear()
+	}
 	return files
 }
 

vlib/v/tests/enum_bitfield_works_with_comptime_conditional_in_the_same_scope_test.v

@@ -0,0 +1,20 @@
+[flag]
+pub enum Fill {
+	crash
+}
+
+fn font_path() string {
+	$if dragonfly {
+		fonts := ['test', 'test/2']
+		if true {
+			return fonts[0]
+		}
+	}
+	return ''
+}
+
+fn test_compilation() {
+	a := Fill.crash
+	println(a)
+	assert true
+}