Remove sLineBreak (Delphi alias for LineEnding) and PathDelim (Delphi
alias for DirectorySeparator). Blaise keeps exactly three platform
constants: LineEnding, DirectorySeparator, PathSeparator.
Platform constant values are now derived from GTarget (the compilation
target) via TargetLineEnding/TargetDirectorySeparator/TargetPathSeparator
in blaise.codegen.target, so cross-compilation produces the correct
values without conditional compilation.