Check isFirstClassCallable before accessing getArgs

Author: ondrejmirtes

src/Rules/PHPUnit/AssertEqualsIsDiscouragedRule.php

@@ -31,6 +31,10 @@ public function processNode(Node $node, Scope $scope): array
 			return [];
 		}
 
+		if ($node->isFirstClassCallable()) {
+			return [];
+		}
+
 		if (count($node->getArgs()) < 2) {
 			return [];
 		}

src/Rules/PHPUnit/AssertSameBooleanExpectedRule.php

@@ -27,6 +27,10 @@ public function processNode(Node $node, Scope $scope): array
 			return [];
 		}
 
+		if ($node->isFirstClassCallable()) {
+			return [];
+		}
+
 		if (count($node->getArgs()) < 2) {
 			return [];
 		}

src/Rules/PHPUnit/AssertSameNullExpectedRule.php

@@ -27,6 +27,10 @@ public function processNode(Node $node, Scope $scope): array
 			return [];
 		}
 
+		if ($node->isFirstClassCallable()) {
+			return [];
+		}
+
 		if (count($node->getArgs()) < 2) {
 			return [];
 		}

src/Rules/PHPUnit/AssertSameWithCountRule.php

@@ -28,6 +28,10 @@ public function processNode(Node $node, Scope $scope): array
 			return [];
 		}
 
+		if ($node->isFirstClassCallable()) {
+			return [];
+		}
+
 		if (count($node->getArgs()) < 2) {
 			return [];
 		}