tcg: Reorg process_op_defs

Process each TCGConstraintSetIndex first.  Allocate TCGArgConstraint
arrays based on those.  Only afterward process the TCGOpcodes and
share those TCGArgConstraint arrays.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 files changed