* dwarf2asm.c (dw2_force_const_mem): Add new parameter 'public'.
On USE_LINKONCE_INDIRECT platforms, build a DECL_ONE_ONLY indirect
reference only if 'public' is true.
(dw2_output_indirect_constant_1): On USE_LINKONCE_INDIRECT platforms,
emit the .hidden directive only if the indirect reference is public.
(dw2_asm_output_encoded_addr_rtx): Add new parameter 'public'.
Pass it to dw2_force_const_mem.
* dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): New param 'public'.
* dwarf2out.c (output_cfi): Adjust calls to above function.
(output_call_frame_info): Likewise.
* except.c (output_ttype): Pass TREE_PUBLIC of the type_info object
as 'public' argument to dw2_asm_output_encoded_addr_rtx.
From-SVN: r106445
