extended info on things we already have:
* PRODUCT is another name for BRAND/PHONE_MODEL
* TOTAL_MEM_SIZE can be derived from hardware name
* DISPLAY is also available by looking up the hardware
* STACK_TRACE_HASH should make automated sorting easier
new info:
* PACKAGE_NAME is only new info if the user is using a whitelabel app
* AVAILABLE_MEM_SIZE can be used to track users, but only when provided at
high resolution, e.g. once per second or higher. Most users only send a
single crash report. High frequency reporters send under 100, which is
still orders of magnatude below what is needed to track users.
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