re PR fortran/20361 (-fmax-stack-var-size=N not working for equivalence)

re PR fortran/20361 (-fmax-stack-var-size=N not working for equivalence)

fortran/
PR fortran/20361
* trans-array.c (gfc_stack_space_left): Remove unused variable.
(gfc_can_put_var_on_stack): Move to trans-decl.c, remove #if 0'ed
code.
* trans-array.h (gfc_stack_space_left, gfc_can_put_var_on_stack):
Remove declaration / prototype.
* trans-common.c (build_equiv_decl): Give union a name.  Check if
it can be put on the stack.
* trans-decl.c (gfc_stack_space_left): Move function here.
(gfc_build_qualified_array): Fix comment typo.
* trans.h (gfc_put_var_on_stack): Add prototype.

testsuite/
PR fortran/20361
* gfortran.dg/largeequiv_1.f90: New test.

From-SVN: r96352