UnusedVariableSniff: Fixed false positive

Author: kukulich

SlevomatCodingStandard/Sniffs/PHP/UselessParenthesesSniff.php

@@ -42,6 +42,7 @@
 use const T_VARIABLE;
 use const T_WHITESPACE;
 use function array_key_exists;
+use function count;
 use function in_array;
 
 class UselessParenthesesSniff implements Sniff

SlevomatCodingStandard/Sniffs/Variables/UnusedVariableSniff.php

@@ -304,7 +304,7 @@ private function isUsedInLoop(File $phpcsFile, int $variablePointer, string $var
 				break;
 			}
 
-			if (!in_array($conditionTokenCode, [T_FOREACH, T_DO, T_WHILE], true)) {
+			if (!in_array($conditionTokenCode, [T_FOREACH, T_FOR, T_DO, T_WHILE], true)) {
 				continue;
 			}
 

tests/Sniffs/Variables/data/unusedVariableNoErrors.php

@@ -241,3 +241,12 @@ function ($values) {
 	   $value = 'changed';
 	}
 };
+
+function () {
+	$bool = false;
+	for ($i = 0; $i < 10; $i++) {
+		if (!$bool) {
+			$bool = true;
+		}
+	}
+};