feat(printer): add per-node NEWLINE_ON_FLUENT_CALL attribute to BetterStandardPrinter

[MrPunyapal]

Summary

Add a per-node attribute AttributeKey::NEWLINE_ON_FLUENT_CALL so individual MethodCall nodes can opt into newline-on-fluent formatting without enabling the global newLineOnFluentCall() option.

Motivation

The printer currently only checks the global Option::NEW_LINE_ON_FLUENT_CALL flag. When a rule enables that option globally, every fluent chain across the processed codebase is reformatted. This causes undesirable, wide-ranging formatting changes. A per-node attribute lets rules request one-method-per-line formatting for specific nodes (for example, expect() chains) without affecting unrelated code.

Example

When creating a MethodCall node in a Rector rule, tag it to enable newline formatting:

use Rector\NodeTypeResolver\Node\AttributeKey;

$methodCall = new MethodCall($receiver, 'and', [$arg]);
$methodCall->setAttribute(AttributeKey::NEWLINE_ON_FLUENT_CALL, true);