Add strrev() to NonEmptyStringFunctionsReturnTypeExtension

Author: nsfisis

Diff for: src/Type/Php/NonEmptyStringFunctionsReturnTypeExtension.php

@@ -34,6 +34,7 @@ public function isFunctionSupported(FunctionReflection $functionReflection): boo
 			'preg_quote',
 			'rawurlencode',
 			'rawurldecode',
+			'strrev',
 		], true);
 	}
 

Diff for: tests/PHPStan/Analyser/nsrt/non-empty-string.php

@@ -359,6 +359,9 @@ public function doFoo(string $s, string $nonEmpty, string $nonFalsy, int $i, boo
 		assertType('string', preg_quote($s));
 		assertType('non-empty-string', preg_quote($nonEmpty));
 
+		assertType('string', strrev($s));
+		assertType('non-empty-string', strrev($nonEmpty));
+
 		assertType('string', sprintf($s));
 		assertType('string', sprintf($nonEmpty));
 		assertType('string', sprintf($s, $nonEmpty));

Diff for: tests/PHPStan/Analyser/nsrt/non-falsy-string.php

@@ -110,6 +110,9 @@ function stringFunctions(string $s, $nonFalsey, $arrayOfNonFalsey, $nonEmptyArra
 
 		assertType('non-falsy-string', preg_quote($nonFalsey));
 
+		assertType('string', strrev($s));
+		assertType('non-falsy-string', strrev($nonFalsey));
+
 		assertType('string', sprintf($nonFalsey));
 		assertType("'foo'", sprintf('foo'));
 		assertType("string", sprintf(...$arr));