Convert all remaining enums to enum classes (!)

src/Nazara/Shader/Ast/AstSerializer.cpp

@@ -753,7 +753,7 @@ namespace Nz::ShaderAst
 	ByteArray SerializeShader(StatementPtr& shader)
 	{
 		ByteArray byteArray;
-		ByteStream stream(&byteArray, OpenModeFlags(OpenMode_WriteOnly));
+		ByteStream stream(&byteArray, OpenModeFlags(OpenMode::WriteOnly));
 
 		ShaderAstSerializer serializer(stream);
 		serializer.Serialize(shader);

src/Nazara/Shader/ShaderLangParser.cpp

@@ -1016,7 +1016,7 @@ namespace Nz::ShaderLang
 
 	ShaderAst::StatementPtr Parse(const std::filesystem::path& sourcePath)
 	{
-		File file(sourcePath);
+		File file(sourcePath);
 		if (!file.Open(OpenMode::ReadOnly | OpenMode::Text))
 		{
 			NazaraError("Failed to open \"" + sourcePath.generic_u8string() + '"');