SlevomatCodingStandard.Functions.StaticClosure: Fixed false positive when $this is the last token

Author: kukulich

SlevomatCodingStandard/Sniffs/Functions/StaticClosureSniff.php

@@ -63,7 +63,7 @@ public function process(File $phpcsFile, $closurePointer): void
 			T_VARIABLE,
 			'$this',
 			$closureScopeOpenerPointer + 1,
-			$closureScopeCloserPointer,
+			$closureScopeCloserPointer + 1,
 		);
 		if ($thisPointer !== null) {
 			return;

tests/Sniffs/Functions/data/staticClosureNoErrors.php

@@ -42,6 +42,11 @@ public function arrayFilterEtc($list)
 		return count(array_filter($list->call('something'), fn (object $object): bool => $object->getAnything() === $this->anything)) === 1;
 	}
 
+	public function thisIsTheLastToken()
+	{
+		return array_values(array_filter(self::getAvailableEnums(), fn (self $state): bool => $state->getParent() === $this));
+	}
+
 }
 
 Closure::bind(function ($instance, $value) {