Suggestion from web: bad function pointer calls

[Binary](https://github.com/avast-tl/retdec/files/1703059/bin.zip) sent to us by user through https://retdec.com/.

**The original message:**
_Something seems to thow the MIPS decompiler way off track. See the main function of the attached file. It starts with various pairs calls to bzero, then strcpy. The decompiler recognizes the first pair, and the bzero of the second pair; after that, it just emits some assignments and function calls through pointers instead of the "real" calls. The varous comparisons and branches the function takes from 0x4072FC seem to be completely lost on it._

Start by reproducing the report with the attached binary and inspect the decompiler output for the main function, especially around address 0x4072FC. Compare the recognized bzero/strcpy calls with the emitted function-pointer calls and check whether the reported comparisons and branches are preserved. Done means the affected control flow and real calls are represented correctly.

Written by the indexing model from the issue text.