renderIr should print the actual return assign node (#22682)

follow up https://github.com/nim-lang/Nim/pull/10806

Eventually we need a new option to print high level IR. It's confusing
when I'm debugging the compiler without showing `return result = 1`
using the expandArc option.

For 
```nim
proc foo: int =
  return 2
```
It now outputs when expanding ARC IR
```nim
proc foo: int =
  return result = 2
```

0 files changed, 0 insertions, 0 deletions