named access to `Vec` #4659

Job	Run time
clang-format	17s
linux_clang-14_cuda-11.2_debug_analysis	13m 14s
windows_cl-2022_debug_analysis	17m 4s
macos_xcode-14.2_debug_analysis	29m 25s
linux_gcc-12_debug_analysis	13m 45s
macos_xcode-13.2.1_debug	21m 9s
macos_xcode-14.2_release	23m 45s
macos_xcode-14.3.1_debug	19m 27s
windows_cl-2022_release	18m 16s
windows_cl-2022_debug	13m 40s
linux_gcc-9_debug	13m 24s
linux_gcc-12_release_c++20	13m 4s
linux_gcc-13_debug	12m 30s
linux_clang-10_release	9m 22s
linux_clang-12_release	29m 36s
linux_clang-13_debug	7m 33s
linux_clang-16_debug_ubsan	9m 14s
linux_clang-16_debug_tsan	11m 28s
	4h 36m 13s

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