Separate PHP 8.4 tests

Author: staabm

resources/functionMap_php84delta.php

@@ -17,6 +17,8 @@
 	'new' => [
 		'http_get_last_response_header ' => ['list<string>'],
 		'http_clear_last_response_header' => ['void'],
+		'mb_lcfirst' => ['string', 'str'=>'string', 'encoding='=>'string'],
+		'mb_ucfirst' => ['string', 'str'=>'string', 'encoding='=>'string'],
 	],
 	'old' => [
 

tests/PHPStan/Analyser/NodeScopeResolverTest.php

@@ -1082,6 +1082,9 @@ public function dataFileAsserts(): iterable
 		if (PHP_VERSION_ID >= 70300) {
 			yield from $this->gatherAssertTypes(__DIR__ . '/data/str-casing.php');
 		}
+		if (PHP_VERSION_ID >= 80400) {
+			yield from $this->gatherAssertTypes(__DIR__ . '/data/str-caseing-php84.php');
+		}
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/non-empty-string-substr-specifying.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/unset-conditional-expressions.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/conditional-types-inference.php');

tests/PHPStan/Analyser/data/str-caseing-php84.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace StrCasingReturnTypePhp84;
+
+use function PHPStan\Testing\assertType;
+
+class Foo {
+	/**
+	 * @param numeric-string $numericS
+	 * @param non-empty-string $nonE
+	 * @param literal-string $literal
+	 * @param 'foo'|'Foo' $edgeUnion
+	 */
+	public function bar($numericS, $nonE, $literal) {
+		assertType("'aBC'", mb_lcfirst('ABC'));
+		assertType("'Abc'", mb_ucfirst('abc'));
+		assertType("numeric-string", mb_lcfirst($numericS));
+		assertType("numeric-string", mb_ucfirst($numericS));
+		assertType("non-empty-string", mb_lcfirst($nonE));
+		assertType("non-empty-string", mb_ucfirst($nonE));
+		assertType("string", mb_lcfirst($literal));
+		assertType("string", mb_ucfirst($literal));
+	}
+}