Fix "offset might not exist" errors

src/Analyser/ArgumentsNormalizer.php

@@ -235,11 +235,10 @@ public static function reorderArgs(ParametersAcceptor $parametersAcceptor, array
 null,
 );
 } elseif (array_key_exists($arg->name->toString(), $argumentPositions)) {
-$argName = $arg->name->toString();
 // order named args into the position the signature expects them
 $attributes = $arg->getAttributes();
 $attributes[self::ORIGINAL_ARG_ATTRIBUTE] = $arg;
-$reorderedArgs[$argumentPositions[$argName]] = new Arg(
+$reorderedArgs[$argumentPositions[$arg->name->toString()]] = new Arg(
 $arg->value,
 $arg->byRef,
 $arg->unpack,

src/Fixable/PhpPrinterIndentationDetectorVisitor.php

@@ -7,9 +7,9 @@
 use PhpParser\Node;
 use PhpParser\NodeVisitor;
 use PhpParser\NodeVisitorAbstract;
+use function array_is_list;
 use function count;
 use function in_array;
-use function is_array;
 use function preg_match;
 use function preg_match_all;
 use function property_exists;
@@ -37,7 +37,7 @@ public function enterNode(Node $node): ?int
 return null;
 }
 
-if (!is_array($node->stmts) || count($node->stmts) === 0) {
+if (!array_is_list($node->stmts) || count($node->stmts) === 0) {
 return null;
 }
 

src/Type/Php/StrTokFunctionReturnTypeExtension.php

@@ -31,7 +31,7 @@ public function getTypeFromFunctionCall(FunctionReflection $functionReflection,
 return null;
 }
 
-$delimiterType = $scope->getType($functionCall->getArgs()[0]->value);
+$delimiterType = $scope->getType($args[0]->value);
 $isEmptyString = (new ConstantStringType(''))->isSuperTypeOf($delimiterType);
 if ($isEmptyString->yes()) {
 return new ConstantBooleanType(false);