* gimplify.c (gimplify_expr) <case CONST_DECL>: Don't replace
        with DECL_INITIAL if fb_lvalue.
        * tree-gimple.c (is_gimple_id): Add CONST_DECL.
        * tree-pretty-print.c (dump_decl_name): Dump unnamed CONST_DECL
        with <Cxxx>.
        * tree-ssa-ccp.c (maybe_fold_stmt_indirect): Fold CONST_DECL.
fortran/
        * trans-expr.c (gfc_conv_expr_reference): Create a CONST_DECL
        for TREE_CONSTANTs.
testsuite/
        * gfortran.fortran-torture/execute/intrinsic_rrspacing.f90: Fix
        write to constant argument.
        * gfortran.fortran-torture/execute/intrinsic_scale.f90: Likewise.

From-SVN: r85365