tests: Add a test for forall Fortran issue

Test file from Alexander Eberspächer.

tests/ctags/Makefile.am

@@ -120,6 +120,7 @@ test_sources = \
 	enum.java						\
 	events.cs						\
 	extern_variable.h				\
+	forall_module.f90				\
 	format.pl						\
 	func_typedef.h					\
 	general.cs						\

tests/ctags/forall_module.f90

@@ -0,0 +1,26 @@
+! a module that uses a forall block
+
+module with_forall
+
+  real :: a
+
+contains
+
+  subroutine sub_with_forall(x)
+    real, intent(inout) :: x(:)
+
+    integer :: i
+
+    forall(i=1:size(x))
+       x(i) = 0.5**i
+    end forall
+  end subroutine sub_with_forall
+
+
+  function two() result(res)
+    real :: res
+
+    res = 2.0
+  end function two
+
+end module with_forall

tests/ctags/forall_module.f90.tags

@@ -0,0 +1,5 @@
+# format=tagmanager
+aÌ16384Îwith_forallÖ0
+sub_with_forallÌ64Îwith_forallÖ0
+twoÌ16Îwith_forallÖ0
+with_forallÌ256Ö0