rtl.h (TREE_CONSTANT_POOL_ADDRESS_P): Rename from DEFERRED_CONSTANT_P.

        * rtl.h (TREE_CONSTANT_POOL_ADDRESS_P): Rename from
        DEFERRED_CONSTANT_P.
        * integrate.c (copy_rtx_and_substitute): Update use.
        * varasm.c (build_constant_desc): Set SYMBOL_REF_DECL
        to the copy generated.
        (maybe_output_constant_def_contents): Examine TREE_ASM_WRITTEN
        of the constant to see if we should emit.
        (mark_constant): Similarly.
        (output_constant_def_contents): Set TREE_ASM_WRITTEN.

From-SVN: r66807