[REVIEW][3-*] fdo#39694, fdo#42073 Writer field expansion regression bugs

[Michael Stahl]

hi all,

some time ago i noticed that some text fields in writer can only be
expanded properly in the text formatting, and so tried to prevent
expansion of fields in lots of other places (in CWS sw34bf01);
it seems that that went a bit past the mark, and some API methods now
fail if they are invoked before the layout gets around to format the
text field (i.e. the methods return stale cached data).

these fixes should be applied to libreoffice-3-4, libreoffice-3-5, and
perhaps libreoffice-3-5-1 as well:

http://cgit.freedesktop.org/libreoffice/core/commit/?id=9519deda120b73b72e75d89c3b2ae3d66220ec2d

http://cgit.freedesktop.org/libreoffice/core/commit/?id=e3dfae0741aae8581cd3fc713ba1b4459bb22d88

the following commits add junit tests for the bugs:

http://cgit.freedesktop.org/libreoffice/core/commit/?id=0982257e5902a29c3faf90c0fa3dba809a2462e5
http://cgit.freedesktop.org/libreoffice/core/commit/?id=870e5a8e8251967b513b4255231ee9665b085431
http://cgit.freedesktop.org/libreoffice/core/commit/?id=72a3c7a2778c493ef1d3f740a0b4b14f805c624a