[DI] Reference tagged services in config

Author: ro0NL

Inline.php

@@ -774,8 +774,8 @@ private static function parseTag($value, &$i, $flags)
         $nextOffset += strspn($value, ' ', $nextOffset);
 
         // Is followed by a scalar
-        if (!isset($value[$nextOffset]) || !in_array($value[$nextOffset], array('[', '{'), true)) {
-            // Manage scalars in {@link self::evaluateScalar()}
+        if ((!isset($value[$nextOffset]) || !in_array($value[$nextOffset], array('[', '{'), true)) && 'tagged' !== $tag) {
+            // Manage non-whitelisted scalars in {@link self::evaluateScalar()}
             return;
         }
 

Parser.php

@@ -698,6 +698,8 @@ private function parseValue($value, $flags, $context)
             if ('' !== $matches['tag']) {
                 if ('!!binary' === $matches['tag']) {
                     return Inline::evaluateBinaryScalar($data);
+                } elseif ('tagged' === $matches['tag']) {
+                    return new TaggedValue(substr($matches['tag'], 1), $data);
                 } elseif ('!' !== $matches['tag']) {
                     @trigger_error(sprintf('Using the custom tag "%s" for the value "%s" is deprecated since version 3.3. It will be replaced by an instance of %s in 4.0.', $matches['tag'], $data, TaggedValue::class), E_USER_DEPRECATED);
                 }