Ignore unknown class to avoid annoyance

Author: herndlm

src/Type/WebMozartAssert/AssertTypeSpecifyingExtension.php

@@ -449,7 +449,10 @@ private static function getExpressionResolvers(): array
 					$classType = $scope->getType($class->value);
 					if ($classType instanceof ConstantStringType) {
 						$classReflection = (new ObjectType($classType->getValue()))->getClassReflection();
-						if ($classReflection === null || !$classReflection->isInterface()) {
+						if ($classReflection === null) {
+							return null;
+						}
+						if (!$classReflection->isInterface()) {
 							return new ConstFetch(new Name('false'));
 						}
 					}

tests/Type/WebMozartAssert/ImpossibleCheckTypeMethodCallRuleTest.php

@@ -92,10 +92,6 @@ public function testExtension(): void
 				'Call to static method Webmozart\Assert\Assert::implementsInterface() with class-string<WebmozartAssertImpossibleCheck\Bar> and \'WebmozartAssertImpossibleCheck\\\Bar\' will always evaluate to true.',
 				108,
 			],
-			[
-				'Call to static method Webmozart\Assert\Assert::implementsInterface() with mixed and \'WebmozartAssertImpossibleCheck\\\Unknown\' will always evaluate to false.',
-				110,
-			],
 			[
 				'Call to static method Webmozart\Assert\Assert::implementsInterface() with mixed and \'WebmozartAssertImpossibleCheck\\\Foo\' will always evaluate to false.',
 				111,

tests/Type/WebMozartAssert/data/impossible-check.php

@@ -102,10 +102,10 @@ public function nonEmptyStringAndSomethingUnknownNarrow($a, string $b, array $c,
 	public function implementsInterface($a, string $b, $c): void
 	{
 		Assert::implementsInterface($a, Bar::class);
-		Assert::implementsInterface($a, Bar::class); // only this should report
+		Assert::implementsInterface($a, Bar::class);
 
 		Assert::implementsInterface($b, Bar::class);
-		Assert::implementsInterface($b, Bar::class); // only this should report
+		Assert::implementsInterface($b, Bar::class);
 
 		Assert::implementsInterface($c, Unknown::class);
 		Assert::implementsInterface($c, self::class);