small cleanup and documentation on pattern matcher

git-svn-id: http://haxe.googlecode.com/svn/trunk@6626 f16182fa-f095-11de-8f43-4547254af6c6
improved error message when iterator is not a Void -> T method (fixed issue #1812)

git-svn-id: http://haxe.googlecode.com/svn/trunk@6627 f16182fa-f095-11de-8f43-4547254af6c6
completed specifications of Lambda and Reflect

git-svn-id: http://haxe.googlecode.com/svn/trunk@6628 f16182fa-f095-11de-8f43-4547254af6c6
weaken Reflect.compare specification to admit negative/positive values instead of -1/1 so Caue has less stuff to fix

git-svn-id: http://haxe.googlecode.com/svn/trunk@6629 f16182fa-f095-11de-8f43-4547254af6c6
protect poor flash8 from evil EReg unit tests

git-svn-id: http://haxe.googlecode.com/svn/trunk@6630 f16182fa-f095-11de-8f43-4547254af6c6
[Js] added some missing != null

git-svn-id: http://haxe.googlecode.com/svn/trunk@6631 f16182fa-f095-11de-8f43-4547254af6c6