Print OpCode on partial exec failure

[msooseth]

Description

Before:

     - Unexpected Symbolic Arguments to Opcode
       msg: "trying to access a symbolic address that isn't already present in storage"
       program counter: 73
       arguments:
         (SymAddr "caller")

Now:

     - Unexpected Symbolic Arguments to Opcode
       msg: "trying to access a symbolic address that isn't already present in storage"
       opcode: CALL
       program counter: 73
       arguments:
         (SymAddr "caller")

Checklist

• tested locally
• added automated tests
• updated the docs
• updated the changelog

[blishko]

Suggested change

	getOpName state = intToOpName $ fromEnum $ (?op)
	getOpName state = intToOpName $ fromEnum (?op)

I also don't understand why do you call it ?op.
From what I read question mark at the beginning is used for implicit parameters, but that is not the case here, no?
Why not call it just op?

[msooseth]

Good catch! Let me try to fix...

[msooseth]

Can you re-review? I cleaned up everything :)

[blishko]

LGTM!