feat(php): add highlight tests

tests/query/highlights/php/keywords.php

@@ -0,0 +1,173 @@
+<?php
+//^^^ @punctuation.bracket
+
+declare(strict_types=1);
+//^^^^^ @keyword
+//      ^^^^^^^^^^^^ @variable.parameter
+//                  ^ @operator
+//                   ^ @number
+//                     ^ @punctuation.delimiter
+
+include "file.php";
+//^^^^^ @keyword.import
+//      ^^^^^^^^^ @string
+include_once "file.php";
+//^^^^^^^^^^ @keyword.import
+require "file.php";
+//^^^^^ @keyword.import
+require_once "file.php";
+//^^^^^^^^^^ @keyword.import
+
+namespace A\B;
+//^^^^^^^ @keyword
+//        ^^^ @module
+
+if ($a and $b or $c xor $d) {} elseif ($b) {} else {}
+// <- @keyword.conditional
+//     ^^^ @keyword.operator
+//            ^^ @keyword.operator
+//                  ^^^ @keyword.operator
+//                             ^^^^^^ @keyword.conditional
+//                                            ^^^^ @keyword.conditional
+
+for ($i = 0; $i < 1; $i++) { continue; }
+// <- @keyword.repeat
+//              ^ @operator
+//                     ^^ @operator
+//                           ^^^^^^^^ @keyword.repeat
+
+while ($b) {}
+//^^^ @keyword.repeat
+
+do { } while ($c);
+// <- @keyword.repeat
+//     ^^^^^ @keyword.repeat
+
+foreach ($foos as $foo) {}
+//^^^^^ @keyword.repeat
+//             ^^ @keyword.operator
+
+try {} catch (Exception $e) {} finally {}
+//^ @keyword.exception
+//     ^^^^^ @keyword.exception
+//            ^^^^^^^^^ @type
+//                             ^^^^^^^ @keyword.exception
+
+function a() {}
+//^^^^^^ @keyword.function
+//       ^ @function
+
+abstract class A
+//^^^^^^ @keyword.modifier
+//       ^^^^^ @keyword
+//             ^ @type
+{
+  private const BAR = 1;
+//^^^^^^^ @keyword.modifier
+//        ^^^^^ @keyword.modifier
+  //            ^^^ @constant
+  protected readonly static $a;
+//^^^^^^^^^ @keyword.modifier
+//          ^^^^^^^^ @keyword.modifier
+//                   ^^^^^^ @keyword.modifier
+  //                        ^^ @property
+  final public $b;
+//^^^^^ @keyword.modifier
+  public static function foo(): static {}
+//^^^^^^ @keyword.modifier
+//       ^^^^^^ @keyword.modifier
+//              ^^^^^^^^ @keyword.function
+//                       ^^^ @function.method
+//                              ^^^^^^ @type.builtin
+  public function __construct() {}
+//                ^^^^^^^^^^^ @constructor
+}
+
+class B extends A implements T
+//    ^ @type
+//      ^^^^^^^ @keyword
+//              ^ @type
+//                ^^^^^^^^^^ @keyword
+//                           ^ @type
+{
+  use T, U {
+//^^^ @keyword.import
+//     ^ @punctuation.delimiter
+    U::small insteadof T;
+//  ^ @type
+//   ^^ @operator
+//     ^^^^^ @constant
+//           ^^^^^^^^^ @keyword
+//                     ^ @type
+  }
+  public function foo(callable $call): self
+//                    ^^^^^^^^ @type.builtin
+//                                     ^^^^ @type.builtin
+  {
+    $call instanceof Closure;
+//  ^^^^^ @variable
+//        ^^^^^^^^^^ @keyword
+//                   ^^^^^^^ @type
+    fn ($a, $b) => $a + $b;
+//  ^^ @keyword.function
+    static $a;
+//  ^^^^^^ @keyword.modifier
+    global $a;
+//  ^^^^^^ @keyword
+    clone $call;
+//  ^^^^^ @keyword
+    match ($a) {
+//  ^^^^^ @keyword.conditional
+      default => "other",
+//    ^^^^^^^ @keyword
+//            ^^ @operator
+    };
+
+    switch ($a) {
+//  ^^^^^^ @keyword.conditional
+      case 'value':
+//    ^^^^ @keyword.conditional
+        break;
+//      ^^^^^ @keyword
+      default:
+//    ^^^^^^^ @keyword
+    }
+    yield $a;
+//  ^^^^^ @keyword.return
+    yield from $a;
+//        ^^^^ @keyword.return
+    return $a;
+//  ^^^^^^ @keyword.return
+    goto a;
+//  ^^^^ @keyword
+    echo "a";
+//  ^^^^ @keyword
+    print "a";
+//  ^^^^^ @keyword
+    print("a");
+//  ^^^^^ @keyword
+    exit;
+//  ^^^^ @keyword
+    exit();
+//  ^^^^ @function.builtin
+    exit(1);
+//  ^^^^ @function.builtin
+  }
+}
+
+throw new Exception("oh");
+//^^^ @keyword.exception
+//    ^^^ @keyword
+//        ^^^^^^^^^ @constructor
+
+interface T {}
+//^^^^^^^ @keyword
+//        ^ @type
+
+trait T { public function small(): void {} }
+//^^^ @keyword
+//    ^ @type
+//                                 ^^^^ @type.builtin
+enum Foo { case Bar; }
+//^^ @keyword
+//         ^^^^  @keyword.conditional