[java/cs] Fixed GADT handling and failed cast detection for returns on statements.
fixed issue #1580


git-svn-id: http://haxe.googlecode.com/svn/trunk@6544 f16182fa-f095-11de-8f43-4547254af6c6
[cs] Source-mapping support. Added define -D real_position to disable it


git-svn-id: http://haxe.googlecode.com/svn/trunk@6545 f16182fa-f095-11de-8f43-4547254af6c6
[java/cs] fixed correct switch() + break label correspondence


git-svn-id: http://haxe.googlecode.com/svn/trunk@6546 f16182fa-f095-11de-8f43-4547254af6c6