* cuintp.c (UI_To_gnu): Use fold_buildN calls instead of calling
fold with the result of buildN.
* decl.c (gnat_to_gnu_entity): Likewise.
* trans.c (Attribute_to_gnu, gnat_to_gnu, emit_check): Likewise.
* utils.c (finish_record_type, merge_sizes, max_size, convert):
Likewise.
* utils2.c (gnat_truthvalue_conversion, compare_arrays,
nonbinary_modular_operation, build_binary_op, build_unary_op,
build_cond_expr): Likewise.
* utils.c (convert): Use fold_build1 when casting values to void.
* utils2.c (gnat_truthvalue_conversion): Use build_int_cst and
fold_convert instead of convert when appropriate.
From-SVN: r122752
