* defaults.h (SUPPORTS_DISCRIMINATOR): New constant.
* dwarf2out.c (dwarf2out_source_line): Add is_stmt parameter.
Output is_stmt operand when necessary.
- * final.c (last_is_stmt): New variable.
- (final_start_function): Initialize last_is_stmt.
- (final_scan_insn): Pass is_stmt to source_line debug hook.
+ * final.c (final_scan_insn): Pass is_stmt to source_line debug hook.
(notice_source_line): Add is_stmt parameter.
* sdbout.c (sdbout_source_line): Add is_stmt parameter.
* vmsdbgout.c (vmsdbgout_source_line): Add is_stmt parameter.