Handle negative offsets for DW_OP_fbreg correctly. #190
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A DW_OP_fbreg can have a negative offset (e.g. for parameters passed on the stack). Handle that by using wrapping_add to avoid overflow. I believe this bug predates the async-eval work I did here.
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A DW_OP_fbreg can have a negative offset (e.g. for parameters passed on the stack).
Handle that by using wrapping_add to avoid overflow. I believe this bug predates
the async-eval work I did here.