[DispatchCreation] Make truncate operations fuse with producers. #34232

Job	Run time
setup / setup	6s
runtime_small	2m 23s
runtime_tracing :: ubuntu-24.04 :: tracy	1m 17s
runtime_tracing :: ubuntu-24.04 :: console	1m 25s
runtime :: ubuntu-24.04	5m 45s
runtime_tracing :: ubuntu-24.04-arm :: tracy	1m 42s
runtime :: ubuntu-24.04-arm	1m 35s
runtime_tracing :: ubuntu-24.04-arm :: console	1m 18s
runtime :: windows-2022	3m 1s
runtime_tracing :: windows-2022 :: tracy	2m 25s
runtime :: macos-14	1m 24s
runtime_tracing :: windows-2022 :: console	3m 29s
runtime_tracing :: macos-14 :: tracy	1m 9s
runtime_tracing :: macos-14 :: console	1m 24s
linux_x64_bazel / linux_x64_bazel	28m 57s
linux_x64_clang / linux_x64_clang	22m 43s
linux_x64_clang_asan / linux_x64_clang_asan	21m 3s
ci_summary / summary	3s
	1h 41m 9s

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