global-auto-composition-mode, emacs-basic-display, and CANNOT_DUMP

[Adrian Robert <arobert@cogsci.ucsd.edu>]

Hi,

In the file composite.el, the value of autloaded variable 
'global-auto-composition-mode' is given initial value

(not (or noninteractive emacs-basic-display))

emacs-basic-display is defined in startup.el, while the autoload goes 
into loaddefs.el

However, as defined in loadup.el, loaddefs.el gets loaded first.

When emacs is dumping, 'noninteractive' is true and the 'or' in the 
code above short-circuits.  But in CANNOT_DUMP situation, 
emacs-basic-display is checked in loaddefs before it has been defined 
in startup (loaded later), causing an abort.

I realize runs of emacs with CANNOT_DUMP must be rare these days, but 
if it is still supported some fix should be made.  Maybe define 
emacs-basic-display somewhere earlier, I'm not sure?