Allow custom importing of files and syntactic sugar #4888

Job	Run time
Enzyme CI LLVM 12 Release macOS	11m 38s
Enzyme CI LLVM 11 Release ubuntu-20.04	4m 13s
Enzyme CI LLVM 12 Debug macOS	5m 27s
Enzyme CI LLVM 11 Debug ubuntu-20.04	3m 51s
Enzyme CI LLVM 13 Release macOS	8m 53s
Enzyme CI LLVM 12 Release ubuntu-20.04	4m 15s
Enzyme CI LLVM 13 Debug macOS	9m 27s
Enzyme CI LLVM 12 Debug ubuntu-20.04	4m 3s
Enzyme CI LLVM 14 Release macOS	6m 0s
Enzyme CI LLVM 13 Release ubuntu-20.04	4m 12s
Enzyme CI LLVM 14 Debug macOS	4m 51s
Enzyme CI LLVM 13 Debug ubuntu-20.04	3m 48s
Enzyme CI LLVM 13 Release macOS XCode	3m 59s
Enzyme CI LLVM 15 Release macOS	10m 56s
Enzyme CI LLVM 14 Release ubuntu-20.04	4m 9s
Enzyme CI LLVM 15 Debug macOS	4m 35s
Enzyme CI LLVM 14 Debug ubuntu-20.04	3m 50s
Enzyme CI LLVM 16 Release macOS	11m 35s
Enzyme CI LLVM 15 Release ubuntu-20.04	4m 19s
Enzyme CI LLVM 16 Debug macOS	4m 52s
Enzyme CI LLVM 15 Debug ubuntu-20.04	3m 58s
Enzyme CI LLVM 16 Release ubuntu-20.04	4m 18s
Enzyme CI LLVM 16 Debug ubuntu-20.04	3m 50s
	2h 10m 59s

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