Fix LongLineDeclaration in in several core/tests/Drupal directories

Problem/Motivation

The sniff, Drupal.Array.Array.LongLineDeclaration is not enabled.

Steps to reproduce

Proposed resolution

Enable Drupal.Array.Array.LongLineDeclaration in the Tests/Core directory.

There are no strict standards for how to split a call to a function across multiple lines. The changes try to be the best fit for readability and the current style used in the file or method.

Remaining tasks

Review

User interface changes

Introduced terminology

API changes

Data model changes

Release notes snippet