As no default values got set, some game settings became NaN, which
triggered exceptions.
This sets sane default.
This also includes better debugging logic in case of exception, so it's
easier to know what happens.
Fixes#6200
Reported by: langbart
Differential Revision: https://code.wildfiregames.com/D4113
This was SVN commit r25736.
Follows 34b1920e7b.
This splits off the object-related functions, such as
[Set/Get/Has]Property, CreateObject, CreateArray, FreezeObject.
It also puts the definitions in the header itself, which might end up
with faster code here & there, though perhaps slower compilation time
(somewhat doubtful since we already included most things anyways).
Differential Revision: https://code.wildfiregames.com/D3956
This was SVN commit r25430.
