re GNATS gcj/12 (gcj accepts invalid code where an exception must be caught/thrown)

re GNATS gcj/12 (gcj accepts invalid code where an exception must be caught/thrown)

Tue Jul 20 13:20:05 1999  Alexandre Petit-Bianco  <apbianco@cygnus.com>

        * parse.y (resolve_and_layout): Check methods only once.
        (resolve_qualified_expression_name): Verify thrown exceptions
        compatibility.
        (check_thrown_exceptions): Reject exceptions thrown in
        initializer. Error message tuned.

(This fixes PR #12. Libgcj's java/net must be updated in order to compiles
 with a patch at this URL:
 http://sourceware.cygnus.com/ml/java-patches/1999-q3/msg00048.html)

From-SVN: r28196