feat(library/kernel_bindings): expose abst_name, abst_domain and abst_body in the Lua API
feat(library/kernel_bindings): expose abst_name, abst_domain and abst_body in the Lua API

Signed-off-by: Leonardo de Moura <7610bae85f2b530654cc716772f1fe653373e892@microsoft.com>

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