test/demangle-cases/bug-978.asm

_ZN1D1aEv:
  push rbp
  mov rbp, rsp
  mov QWORD PTR [rbp-8], rdi
  mov eax, 1
  pop rbp
  ret
_ZN1D3abcEv:
  push rbp
  mov rbp, rsp
  mov QWORD PTR [rbp-8], rdi
  mov eax, 1
  pop rbp
  ret
_ZN1C1aEv:
  push rbp
  mov rbp, rsp
  mov QWORD PTR [rbp-8], rdi
  mov eax, 1
  pop rbp
  ret