PR c++/4872

    PR c++/4872
        * decl.c (finish_function): Warn about a non-void function with
        no return statement and no abnormal exit.
        * cp-tree.h (struct cp_language_function): Add returns_abnormally.
        (current_function_returns_abnormally): New macro.
        * call.c (build_call): Set it.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49407 138bc75d-0d04-0410-961f-82ee72b054a4