[tex-live] [TeXLive 2013 pretest] lualatex cannot load fonts

[Bill Sun]

Hi,

TL 2013 pretest, luaotfload 2.2 (2013-05-06), archlinux x86_64
I updated the pretest on Monday, May 13. After update, lualatex could not
compile the .tex if I load fontspec package (even if I do not specify any fonts
at all). xelatex works fine, and previous version also worked find, before I
updated the system.

Error message:
    ! LuaTeX error
.../texlive/texmf-dist/tex/luatex/luaotfload/luaotfload.lua:85: a
    ttempt to index global 'dir' (a nil value)
    stack traceback:
            .../texlive/texmf-dist/tex/luatex/luaotfload/luaotfload.lua:85:
in main chunk
            [C]: in function 'require'
            ...pt/texlive/texmf-dist/tex/luatex/luatexbase/modutils.lua:57:
in function 're
    quire_module'
            [string "\directlua "]:1: in main chunk.
    \lltxb at requirelua ...xluaescapestring {#2}" \fi )}

    l.41 \fi

MWE:
    \documentclass[12pt]{article}

    \usepackage{fontspec}
    \setmainfont{Minion Pro}

    \begin{document}

    Test

    \end{document}

Regards.