build

Add performance lint module, first_character/with_das_string builtins, optimize character_at #7325

Job	Run time
pre_job	10s
build (darwin15, arm64, Debug, none)	7m 30s
build (darwin15, 64, Debug, none)	14m 22s
build (linux, 64, Debug, none)	13m 6s
build (linux_arm, 64, Release, none)	16m 19s
build (darwin15, 64, Release, none)	23m 47s
build (darwin26, arm64, Release, none)	10m 1s
build (linux, 64, Release, none)	20m 51s
build (windows, 32, Release, none)	8m 38s
build (linux_arm, 64, Debug, none)	10m 9s
build (darwin15, arm64, Release, none)	10m 47s
build (windows, 64, Debug, none)	29m 22s
build (windows, 32, Debug, none)	9m 55s
build (windows, 64, Release, none)	19m 39s
build (linux, 64, Debug, ubsan, ubuntu-latest-fat, linux_ubsan, cmake, Ninja)	21m 30s
build (darwin26, arm64, Debug, none)	7m 10s
	3h 43m 16s

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