Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
2	0	EP	call site: 00000	pem.parse

Fuzzer calltree


         ...fuzz_pem.TestOneInput

[function] [call site] 00000


           pem.parse

[function] [call site] 00001


           <builtin>.len

[function] [call site] 00002