Do not report do-while-false pseudo-loops that are interrupted by a break statement

[claudepache]

This enables support of the do-break-while-false pattern:

do {
    if ($foo) {
        if ($bar) {
            $a = 'baz';
            break;
        }
     }
     $a = foobar($baz);
} while (false); // no doWhile.alwaysFalse error

The error is still reported when the pseudo-loop is not broken with break.

[claudepache]

(The second commit did not change semantics, only simplified redundant conditions.)

[ondrejmirtes]

I rebased the PR. It needs some fixes:

Parse error: tests/PHPStan/Rules/Comparison/data/do-while-loop.php:148
    146| 	}
    147| 
  > 148| 	public function doFoo12(array $a)
    149| 	{
    150| 		do {
Cannot redeclare DoWhileLoopConstantCondition\Foo::doFoo12()