[wip] Add MergedDataMap to method

[lucylq]

Stack from ghstack (oldest at bottom):

• -> [wip] Add MergedDataMap to method #12088
• [wip] Introduce MergedDataMap #12087

Differential Revision: D77472917

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/12088

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❌ 6 New Failures

As of commit 19c16cb with merge base 17e3693 ():

NEW FAILURES - The following jobs have failed:

• pull / test-binary-size-linux-gcc / linux-job (gh)
  /pytorch/executorch/../executorch/runtime/executor/merged_data_map.h:43:27: error: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Werror=sign-compare]
• pull / test-models-linux-basic (mv3, portable, cmake, linux.arm64.2xlarge, executorch-ubuntu-22.04-gcc11... / linux-job (gh)
  RuntimeError: Command docker exec -t 4dcc82bf4c5ed6c6786ce349a4ace3219ecb9be4fb02167cecad1c0f5ccac659 /exec failed with exit code 139
• pull / test-models-linux-basic (vit, portable, cmake, linux.arm64.2xlarge, executorch-ubuntu-22.04-gcc11... / linux-job (gh)
  RuntimeError: Command docker exec -t 964f72a0edcc85f8a613e9fcbbd065fcb7d1deb474f9f408f10bec8270542de9 /exec failed with exit code 139
• pull / test-setup-linux-gcc / linux-job (gh)
  RuntimeError: Command docker exec -t ec6cd6865b793ee18e70cb77cdf6223fd6c5cf14354901e2778a50bf982c97b5 /exec failed with exit code 139
• pull / unittest / linux / linux-job (gh)
  examples/models/llama/tests/test_ring_attention.py::TestRingAttention::test_single_token_processing_quantized
• pull / unittest-editable / linux / linux-job (gh)
  examples/models/llama/tests/test_ring_attention.py::TestRingAttention::test_single_token_processing_quantized

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[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D77472917

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