* tree.h (TARGET_EXPR_SLOT, TARGET_EXPR_INITIAL): New macros.
        (TARGET_EXPR_CLEANUP): New macro.
cp/
        * except.c: Don't include decl.h or obstack.h.  Do include
        tree-inline.h.
        (build_throw): Destroy temporaries from the thrown
        expression before calling __cxa_throw.  Construct a thrown
        temporary directly into the exception object.
        (stabilize_throw_expr): New function.
        (wrap_cleanups_r): New function.
        * tree.c (stabilize_expr): New function.
        * init.c (build_init): New function.
        * Make-lang.in (cp/except.o): Adjust .h deps.

From-SVN: r50177