feat(attr): Gen & pass JITDwarfShortName on demand #2048

Job	Run time
build_system	22s
duplicates	2s
build (gcc-13.deb, --mini-tests)	1m 4s
build (gcc-13.deb, --std-tests)	59s
build (gcc-13.deb, --test-libcore)	55s
build (gcc-13.deb, --extended-rand-tests)	1m 6s
build (gcc-13.deb, --extended-regex-example-tests)	1m 0s
build (gcc-13.deb, --extended-regex-tests)	54s
build (gcc-13.deb, --test-successful-rustc --nb-parts 2 --current-part 0)	54s
build (gcc-13.deb, --test-successful-rustc --nb-parts 2 --current-part 1)	58s
build (gcc-13.deb, --projects)	1m 18s
build (gcc-13-without-int128.deb, --mini-tests)	1m 4s
build (gcc-13-without-int128.deb, --std-tests)	48s
build (gcc-13-without-int128.deb, --test-libcore)	49s
build (gcc-13-without-int128.deb, --extended-rand-tests)	1m 7s
build (gcc-13-without-int128.deb, --extended-regex-example-tests)	49s
build (gcc-13-without-int128.deb, --extended-regex-tests)	54s
build (gcc-13-without-int128.deb, --test-successful-rustc --nb-parts 2 --current-part 0)	1m 2s
build (gcc-13-without-int128.deb, --test-successful-rustc --nb-parts 2 --current-part 1)	51s
build (gcc-13-without-int128.deb, --projects)	57s
	17m 53s

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