Replace libdparse in IfElseSameCheck #271

Job	Run time
Run all tests (dmd-latest, dmd, ubuntu-22.04, make)	2m 45s
Run all tests (dmd-latest, dmd, ubuntu-22.04, dub, min libdparse)	1m 31s
Run all tests (dmd-latest, dmd, macos-latest, make)	4m 32s
Run all tests (dmd-latest, dmd, macos-latest, dub, min libdparse)	2m 26s
Run all tests (dmd-latest, dmd, windows-latest, make)	4m 2s
Run all tests (dmd-latest, dmd, windows-latest, dub, min libdparse)	3m 14s
Run all tests (ldc-latest, ldmd2, ubuntu-22.04, make)	3m 33s
Run all tests (ldc-latest, ldmd2, ubuntu-22.04, dub, min libdparse)	2m 10s
Run all tests (ldc-latest, ldmd2, macos-latest, make)	11m 56s
Run all tests (ldc-latest, ldmd2, macos-latest, dub, min libdparse)	3m 12s
Run all tests (ldc-latest, ldmd2, windows-latest, make)	8m 46s
Run all tests (ldc-latest, ldmd2, windows-latest, dub, min libdparse)	3m 37s
Run all tests (dmd-latest, gdc-12, ubuntu-22.04, make)	1m 56s
	53m 40s

Provide feedback