Export information from r2 so that they can be used in RetDec

[PeterMatula]

Export the following information from r2:

• [ ] Functions:
  • [x] address ranges
  • [ ] names, demangled names
  • [ ] function comments (if there is such thing in r2)
  • [x] calling conventions
  • [x] arguments - count and names
  • [x] data types - i.e. return type, and argument types
• [x] Local variables:
  • [x] names
  • [x] locations - i.e. offsets
  • [x] data types
• [ ] Global variables:
  • [x] names
  • [x] locations - i.e. addresses
  • [ ] data types
• [ ] Control flow:
  • [ ] basic blocks - i.e. their address ranges
  • [ ] basic block relations - i.e. successors and predecessors

This issue tracks only the state of exporting this information from Radare2. If there is an issue with using it in RetDec, create a new issue in the RetDec repo.

Check the info as exported only if there is a regression tests checking the functionality. Reference regression tests (commits, or links) here.