Update keyword-highlighting rules

Author: Ayesh

src/KeywordEnhancer.php

@@ -9,7 +9,7 @@ class KeywordEnhancer {
         '/(?<![`>()-])\bext\/[a-z_\d\/-]+\.phpt\b(?![`])/i', // ext/test/test/test.phpt
         '/\b(?<![`\/])[a-z][a-z\d_-]+(.stubs?)?\.(phpt?|c|h)(?![`.?])/', // run-tests.php / foo.stub.php foo.stubs.php / test-foo-bar.phpt,
         '/\b(?<!`)ext\/[a-z_]+\b(?![`\/])/', // ext-names
-        '/\b(?<!`)__[a-z][a-zA-Z\d_]+\(\)(?![`ws])/', // __debugInfo()
+        '/\b(?<![`:])__[a-z][a-zA-Z\d_]+\(\)(?![`ws])/', // __debugInfo()
         '/\b(?<!`)[A-Za-z][A-Za-z\d]+::(?:__)?[a-z][A-Za-z\d_]+\(\)(?![`\/-])/', // Class::methods()
         '/\b(?<!`)[A-Z][A-Za-z]+::(?:__)[a-z][A-Za-z\d_]+(?![`\/-])\b(?![)(])/', // Class::__magicMethods
         '/\b(?<!`)[A-Z][A-Za-z]+::[A-Z][A-Z_\d]+\b(?![`\/(])/', // Class::CONSTANTS

tests/KeywordEnhancerTest.php

@@ -168,6 +168,10 @@ public static function dataCodifyText(): array {
                 'Add an enum for HASH_KEY_IS constants',
                 'Add an enum for `HASH_KEY_IS` constants',
             ],
+            [
+                'Deprecate SplFixedArray::__wakeup()',
+                'Deprecate `SplFixedArray::__wakeup()`',
+            ],
         ];
     }