Essentially when stackprof concatenates files together, it normalises the frames from each "file" using an MD5 based on file/line etc. For raw data there are two problems

a) raw data was not being output to the "combined" file
b) raw frames were not being normalised.

This change does the above two things. This is an upstream issue, but without this, generating raw frames for "flamegraphs" is hit-and-miss. (hit-and-miss because it depends on whether the data that was collected in the middleware was multiple files or just one file).

@fbogsany @csfrancis @camilo

This works generating raw frames and flamegraphs each time now. :-)

This is similar to the earlier request, except that it is for shopify/stackprof master. The previous one was a diff against 0.28, which I will do separately.

I plan to open this issue for the upstream code also.