Cyclomatic Complexity not reported correctly

[fabianbadoi]

Hi,

I've noticed PhpMetrics does not correctly report cyclomatic complexity and max method cyclomatic complexity.

The bug is due to CyclomaticComplexityVisitor::leaveNode(), line 61 not taking into account else branches, elseif branches and ternary operators in control statement conditions.

if (isset($node->stmts) && $node->stmts) {
    foreach ($node->stmts as $child) {
        $ccn += $cb($child);
    }
}

Here's an example:
Say the $cb function is analysing an if statement. All nodes in the $node->stmts will be evaluated, but these are only the statements in the true branch. Thus, the else branch and elseif branches are ignored.

I will make a PR with a fix shortly. Here.