[Bug fortran/84487] [8/9 Regression] Large rodate section increase in 465.tonto with r254427

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84487

--- Comment #16 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
A shorter reproducer:

$ cat types-2.f90 
module TYPES_MODULE

  implicit none

  type archive_type
     character(2**18) :: root_name
  end type archive_type
end module TYPES_MODULE
$ gfortran -c types-2.f90 
$ bloaty types-2.o 
     VM SIZE                      FILE SIZE
 --------------                --------------
 100.0%   256Ki .rodata          256Ki  99.3%
   0.0%       0 [ELF Headers]      960   0.4%
   0.0%       0 .symtab            312   0.1%
   0.0%       0 .strtab            180   0.1%
   0.0%       0 .shstrtab          102   0.0%
   0.0%      56 .eh_frame           56   0.0%
   0.0%       0 .rela.rodata        48   0.0%
   0.0%      45 .text               45   0.0%
   0.0%       0 .comment            42   0.0%
   0.0%       0 [Unmapped]          31   0.0%
   0.0%       0 .rela.eh_frame      24   0.0%
   0.0%       0 .rela.text          24   0.0%
 100.0%   256Ki TOTAL            257Ki 100.0%