fix

Author: staabm

src/Rules/Comparison/ImpossibleCheckTypeHelper.php

@@ -268,6 +268,17 @@ public function findSpecifiedType(
 				return null;
 			}
 
+			if ($node instanceof Expr\CallLike) {
+				foreach ($node->getArgs() as $arg) {
+					if (
+						$arg->value === $rootExpr
+						&& $scope->getType($arg->value)->isConstantScalarValue()->yes()
+					) {
+						return null;
+					}
+				}
+			}
+
 			$rootExprType = ($this->treatPhpDocTypesAsCertain ? $scope->getType($rootExpr) : $scope->getNativeType($rootExpr));
 			if ($rootExprType instanceof ConstantBooleanType) {
 				return $rootExprType->getValue();

src/Rules/Comparison/ImpossibleCheckTypeStaticMethodCallRule.php

@@ -49,11 +49,6 @@ public function processNode(Node $node, Scope $scope): array
 			return [];
 		}
 
-		$returnType = $scope->getKeepVoidType($node);
-		if ($returnType->isVoid()->yes()) {
-			return [];
-		}
-
 		$addTip = function (RuleErrorBuilder $ruleErrorBuilder) use ($scope, $node): RuleErrorBuilder {
 			if (!$this->treatPhpDocTypesAsCertain) {
 				return $ruleErrorBuilder;