[debug-early] emit debug for Fortran named decls

[Aldy Hernandez]

I thought we could do without this, but rest_of_decl_compilation is not 
called for constant decls, so I've put back what the Fortran FE 
originally had.  This fixes a gdb regression.

Committed to branch.
Aldy
commit 0f6f7418836c533a49a5464828a0461aec437ebc
Author: Aldy Hernandez <al...@redhat.com>
Date:   Tue Mar 24 09:23:50 2015 -0700

    Emit early debug from gfc_emit_parameter_debug_info.

diff --git a/gcc/fortran/trans-decl.c b/gcc/fortran/trans-decl.c
index dba6362..107a7d8 100644
--- a/gcc/fortran/trans-decl.c
+++ b/gcc/fortran/trans-decl.c
@@ -4776,6 +4776,7 @@ gfc_emit_parameter_debug_info (gfc_symbol *sym)
                                              TREE_TYPE (decl),
                                              sym->attr.dimension,
                                              false, false);
+  debug_hooks->early_global_decl (decl);
 }