MONO_ARCH_IMT_REG saved by the trampoline code.
Given that only the IMT slots that are actually used will be initialized, this saves
quite a bit of memory, as it's unlikely that all the interface methods are called on
MONO_ARCH_IMT_REG saved by the trampoline code.
Given that only the IMT slots that are actually used will be initialized, this saves
quite a bit of memory, as it's unlikely that all the interface methods are called on