Replace libdparse with DMD in LineLengthCheck #435

Job	Run time
Run all tests (dmd-latest, dmd, ubuntu-22.04, make)	2m 53s
Run all tests (dmd-latest, dmd, ubuntu-22.04, dub, current)	1m 26s
Run all tests (dmd-latest, dmd, ubuntu-22.04, dub, min libdparse)	1m 35s
Run all tests (dmd-latest, dmd, windows-latest, make)	2m 13s
Run all tests (dmd-latest, dmd, windows-latest, dub, current)	2m 6s
Run all tests (dmd-latest, dmd, windows-latest, dub, min libdparse)	2m 37s
Run all tests (ldc-latest, ldmd2, ubuntu-22.04, make)	3m 45s
Run all tests (ldc-latest, ldmd2, ubuntu-22.04, dub, current)	1m 48s
Run all tests (ldc-latest, ldmd2, ubuntu-22.04, dub, min libdparse)	2m 11s
Run all tests (ldc-latest, ldmd2, macos-latest, make)	4m 29s
Run all tests (ldc-latest, ldmd2, macos-latest, dub, current)	1m 50s
Run all tests (ldc-latest, ldmd2, macos-latest, dub, min libdparse)	2m 10s
Run all tests (ldc-latest, ldmd2, windows-latest, make)	5m 35s
Run all tests (ldc-latest, ldmd2, windows-latest, dub, current)	3m 8s
Run all tests (ldc-latest, ldmd2, windows-latest, dub, min libdparse)	3m 38s
Run all tests (dmd-latest, gdc-12, ubuntu-22.04, make)	4m 0s
Run all tests (dmd, macos-13, dub, current)	2m 17s
	47m 41s

Provide feedback