X86Compiler: Fixed to compile if 'support-new-methods' is off.
X86Compiler: Fixed to compile if 'support-new-methods' is off.

Of course it needs to be on for X86Compiler to be useful, but this allows you
to compile the '3-x86' branch with a compiler built from the current 'trylon-3'
branch (which doesn't turn 'support-new-methods' into the SUPPORT_NEW_METHODS_
C symbol).

stevefolta/trylon,stevefolta/trylon,stevefolta/trylon,stevefolta/trylon,stevefolta/trylon