* src/comp.c: Add declarations for gcc_jit_type_is_pointer,
gcc_jit_context_new_bitcast, when provided.

* (type_to_cast_index, define_type_punning, define_cast_from_to,
define_cast_functions): Define functions when
gcc_jit_context_new_bitcast is not available.

* (emit_coerce): Use gcc_jit_context_new_bitcast to coerce types, when
available.


The code is also available on the branch feature/jit-improved-type-
punning.

Thanks,
Vibhav

-- 
Vibhav Pant
vibhavp@gmail.com

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