[inductor][easy] add buffer layout to SchedulerNode.debug_str

[shunting314]

Stack from ghstack (oldest at bottom):

• (to be filled)

cc @ezyang @msaroufim @bdhirsh @anijain2305 @chauhang @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @peterbell10 @ipiszy @yf225 @chenyang78 @kadeng @muchulee8 @ColinPeppler @amjames @desertfire

[pytorch-bot]

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❌ 8 New Failures

As of commit 2af8c8e with merge base 77c3533 ():

NEW FAILURES - The following jobs have failed:

• Check mergeability of ghstack PR / ghstack-mergeability-check (gh)
  Process completed with exit code 1.
• pull / linux-focal-cuda12.1-py3.10-gcc9 / test (default, 2, 5, linux.4xlarge.nvidia.gpu) (gh)
  inductor/test_debug_trace.py::TestDebugTrace::test_debug_trace
• pull / linux-focal-cuda12.1-py3.10-gcc9-sm86 / test (default, 4, 5, linux.g5.4xlarge.nvidia.gpu) (gh)
  inductor/test_debug_trace.py::TestDebugTrace::test_debug_trace
• pull / linux-focal-py3.11-clang10 / test (default, 2, 3, linux.2xlarge) (gh)
  inductor/test_debug_trace.py::TestDebugTrace::test_debug_trace
• pull / linux-focal-py3.12-clang10 / test (default, 2, 3, linux.2xlarge) (gh)
  inductor/test_debug_trace.py::TestDebugTrace::test_debug_trace
• pull / linux-focal-py3.8-clang10 / test (default, 2, 3, linux.2xlarge) (gh)
  inductor/test_debug_trace.py::TestDebugTrace::test_debug_trace
• pull / linux-jammy-py3.10-clang15-asan / test (default, 3, 6, linux.4xlarge) (gh)
  inductor/test_debug_trace.py::TestDebugTrace::test_debug_trace
• pull / linux-jammy-py3.8-gcc11 / test (default, 1, 3, linux.2xlarge) (gh)
  inductor/test_debug_trace.py::TestDebugTrace::test_debug_trace

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