Add nicer displaying of 1 instruction loops

[lorsanta]

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• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've updated the documentation with the relevant information (if needed)

Detailed description

Ref #3369

Test plan (required)

I compiled

.globl _main
_start:
movq $1, %rax
loop:
jmp loop
jmp loop2
loop2:
movq $3, %rax
jmp .
jmp .
loop3:
movq $2, %rax
jmp loop3

with gcc -nostdlib hello.s -o hello and this is the result:

Closing issues

Closes #3369

[wargio]

Looks good!

[karliss]

Looks good enough.