pytorch - 💡(How to fix) Fix [Inductor] Copy-paste typo in scheduler prologue fusion guard: `node1` checked twice instead of `node1` and `node2`

# Line 6610 (BUGGY):
if node1.has_aliasing_or_mutation() or node1.has_aliasing_or_mutation():
    why("template prologue can only fuse functional pointwise nodes")
    return False

---

# Correct:
if node1.has_aliasing_or_mutation() or node2.has_aliasing_or_mutation():
    why("template prologue can only fuse functional pointwise nodes")
    return False

---

# Line 6377 (correct):
if node1.has_aliasing_or_mutation() or node2.has_aliasing_or_mutation():
    return None

---

import inspect
from torch._inductor import scheduler

source = inspect.getsource(scheduler)
lines = source.split('\n')

for i, line in enumerate(lines):
    if 'node1.has_aliasing_or_mutation() or node1.has_aliasing_or_mutation()' in line:
        for j in range(max(0, i-3), min(len(lines), i+4)):
            marker = ">>>" if j == i else "   "
            print(f"  {marker} {lines[j]}")
        print(f"\n  BUG: second 'node1' should be 'node2'")
        break

---

if node1.get_buffer_names() & unsupported_prologue_args:
                   why("prologue fusion not implemented for kernel for these inputs")
                   return False
   >>>
               if node1.has_aliasing_or_mutation() or node1.has_aliasing_or_mutation():
                   why("template prologue can only fuse functional pointwise nodes")
                   return False

     BUG: second 'node1' should be 'node2'

---

-            if node1.has_aliasing_or_mutation() or node1.has_aliasing_or_mutation():
+            if node1.has_aliasing_or_mutation() or node2.has_aliasing_or_mutation():
                 why("template prologue can only fuse functional pointwise nodes")
                 return False