Merge branch 'phpng' into call-frame

* phpng:
  Reverted 387c491559f1507685740bf613070d27bce59e4d (it broke ext/standard/tests/file/bug44607.phpt)
  op2 is null terminated string
  IS_OBJECT and IS_RESOURCE is obviously exclusive
  No need to initialize it
  More optimizations
  Let's assume the name is already lowercased
  Save some strlen
  Use ZEND_HANDLE_NUMERIC
  Fixed stack usage

diff --cc Zend/zend_API.c
Simple merge