Rename value_t to vm_value.
Rename vm_instruction_t to vm_instruction.
Rename op_t to vm_op.
Rename opcode_t to vm_opcode.
Rename vm_function_t to vm_function.
Rename vm_unit_t to vm_unit.
Rename memblock_flags_t to vm_memblock_flags.
Rename vm_state::memblock_t to vm_state::memblock.
Rename chunk_id_t to vm_chunk_id.
Rename NAME_t to vm_NAME for chunk types.
Rename vm_unit::*_t structs to remove _t suffix.
Rename vm_chunk_offsets::chunk_offset_t to *::chunk_offset.