Teach the lexer to extract the #line directive prefix and line number as
a new token type. Teach the parser to recognize this token followed by
a string as the file name (plus possibly other content). Report the
named file as included by the source file.
The parser can be re-used outside cmDependsFortran or the cmDepends
class hierarchy so drop the "Depends" from its name:
rename 's/DependsFortran([A-Za-z0-9_])/Fortran$1/' Source/*.*
sed -i 's/DependsFortran\([A-Za-z0-9_]\)/Fortran\1/g' Source/*.*
sed -i 's/FortranInternals/DependsFortranInternals/g' Source/*.*
Also manually fix Source/CMakeLists.txt source file ordering.