(sched_analyze_insn): Parameter loop_note type changed
to rtx, and name changed to loop_notes.  Code adding it to
REG_NOTES modified to account for type change.
(sched_analyze): Variable loop_note type changed to rtx, and name
changed to loop_notes.  Store LOOP_* REG_DEAD notes in it instead
of LOOP_* NOTE_LINE_NUMBER.
(schedule_block): Pass last not insn to emit_note_before call.

From-SVN: r8099