* function.c (allocate_struct_function): New, split out of ...
        (prepare_function_start, init_function_start): ... here.
        * expr.c (init_expr): Use ggc_alloc_cleared.
        * stmt.c (init_stmt_for_function): Likewise.
        * tree.h (allocate_struct_function): Declare.

From-SVN: r70929