Update after release of PHPCS 3.7.2

[jrfnl]

Internal: new StableCollections class

... to allow for optimizing the token arrays in the PHPCSUtils\Tokens\Collections class without affecting functions and tests in PHPCSUtils itself.

Internal/IsShortArrayOrList[WithCache]: use stable token collections

The token collections from the Collections class can return different tokens depending on the PHPCS version used.
This can impact the functionality of various utilities in PHPCSUtils.

While for most functionality, this is exactly the intended behaviour, for the code in the Internal classes, it is not and that code should still support the full functionality (determining whether a square bracket is a real square bracket, a short array or a short list) as otherwise the code becomes untestable (and more difficult to maintain).

Sniffs should use the Collections class token arrays and should - depending on the PHPCS version - just no longer send "plain square brackets" to these classes, which will optimize sniff performance.

PassedParameters: update for PHPCS 3.7.2

Make sure the Collections::parameterPassingTokens() also no longer accepts the T_OPEN_SQUARE_BRACKET token when on PHPCS 3.7.2 or higher (as it will never be a short array).

Includes updating one test to be in line with this.

Collections: update array/list token collection for PHPCS 3.7.2

PHPCS 3.7.2 has been released with a fix related to the tokenization of short arrays/short lists.

With that fix included, sniffs no longer need to examine square bracket tokens anymore to check if those happen to be a short list/short array (well, not until the next bug is discovered).

This commit updates all BC compatible token collections related to short lists/short arrays to only include the T_[OPEN|CLOSE]_SQUARE_BRACKET tokens when on PHPCS < 3.7.2.

The net effect of this change should be that sniffing will be significantly faster on PHPCS 3.7.2.

Includes adjusted unit tests for the Collections.

Note: if/when the minimum supported PHPCS version goes up to PHPCS 3.7.2 or higher, this commit can be reverted and the square bracket tokens can be removed from the property based arrays instead.

Ref: squizlabs/PHP_CodeSniffer#3632