re PR c++/5636 (gcc-3.0.3, memory leakage: function that take a string as parameter will not call local variable destructors if exception is thrown.)

        PR c++/5636
        * tree.h (CLEANUP_EH_ONLY): New macro.
        * stmt.c (expand_decl_cleanup_eh): New fn.
        (expand_cleanups): Check CLEANUP_EH_ONLY.
        * c-semantics.c (genrtl_decl_cleanup): Just take the CLEANUP_STMT.
        Use expand_decl_cleanup_eh.
        (expand_stmt): Adjust.
        * c-common.h: Adjust prototype.
        * cp/semantics.c (nullify_returns_r): Just set CLEANUP_EH_ONLY on
        cleanup for nrv.

        * except.c (struct eh_status): Remove protect_list.
        (begin_protect_partials, end_protect_partials): Remove.
        (add_partial_entry): Remove.
        * except.h: Remove prototypes.

        * expr.c (expand_expr) [WITH_CLEANUP_EXPR, TARGET_EXPR]: Use
        expand_decl_cleanup_eh.

cp/:
        * semantics.c (finish_eh_cleanup): New fn.
        * cp-tree.h: Add prototype.
        * init.c (perform_member_init, expand_cleanup_for_base): Use
        finish_eh_cleanup.
        * cp-tree.def (SUBOBJECT, CTOR_STMT): Remove.
        * cp-tree.h: Remove references.
        * decl.c (begin_constructor_body, end_constructor_body): Likewise.
        * dump.c (cp_dump_tree): Likewise.
        * pt.c (tsubst_expr): Likewise.
        * semantics.c (genrtl_ctor_stmt, genrtl_subobject): Remove.
        (cp_expand_stmt): Remove handling of CTOR_STMT and SUBOBJECT.
        * tree.c (cp_statement_code_p): Likewise.

        * init.c (build_new_1): Set CLEANUP_EH_ONLY on deleting cleanup.

From-SVN: r51827