demonstrate that the old scanner is broken

(if applied before the two step scanner, also make
`NinjaBackend.get_fortran_orderdeps()` a no-op)

run: the follwing in this test:
meson setup builddir
ninja -C builddir/ mod_name_case.p/test.f90.o -v -j1

Watch compilation fail, since we don't have a proper dependency order.

test cases/fortran/8 module names/meson.build

@@ -2,5 +2,8 @@ project('mod_name_case', 'fortran')
 
 sources = ['test.f90', 'mod1.f90', 'mod2.f90']
 
-exe = executable('mod_name_case', sources)
+l = static_library('s1', 'mod1.f90')
+l2 = static_library('s2', 'mod2.f90', link_whole : l)
+
+exe = executable('mod_name_case', 'test.f90', link_with : l2)
 test('mod_name_case', exe)

test cases/fortran/8 module names/mod2.f90

@@ -1,6 +1,14 @@
 module mymod2
+use mymod1
 implicit none
 
 integer, parameter :: myModVal2 = 2
 
+contains
+    subroutine showvalues()
+        print*, "myModVal1 = ", myModVal1
+        print*, "myModVal2 = ", myModVal2
+    end subroutine showvalues
+
+
 end module mymod2

test cases/fortran/8 module names/test.f90

@@ -1,9 +1,8 @@
 program main
-use mymod1
 use MyMod2  ! test inline comment
 
 implicit none
 
-integer, parameter :: testVar = myModVal1 + myModVal2
+call showvalues()
 
 end program