rsz: Demote empty violator message

Move the empty violating-pin message from an unconditional info log to the violator_collector debug channel.

This keeps speculative or stale endpoint candidate searches from adding noisy INFO output to normal repair_timing regressions.

Update the affected repair setup golden logs after the message is hidden by default.

Signed-off-by: Jaehyun Kim <jhkim@precisioninno.com>

Author: jhkim-pii

src/rsz/src/RepairTargetCollector.cc

@@ -91,7 +91,8 @@ const char* RepairTargetCollector::getEnumString(ViolatorSortType sort_type)
 void RepairTargetCollector::printViolators(int numPrint = 0) const
 {
   if (violating_pins_.empty()) {
-    logger_->info(RSZ, 8, "No violating pins found.");
+    debugPrint(
+        logger_, RSZ, "violator_collector", 1, "No violating pins found.");
     return;
   }
 

src/rsz/test/repair_setup_phase_tns.ok

@@ -49,8 +49,6 @@ Path Type: max
           | Buffers |  Gates  | Buffers  |  Gates | Swaps |          |          |            |            | Endpts | St/EnPt 
 ------------------------------------------------------------------------------------------------------------------------------
        0* |       0 |       0 |        0 |      0 |     0 |    +0.0% |   -0.333 |       -0.3 |       -0.4 |      4 | r2/D
-[INFO RSZ-0008] No violating pins found.
-[INFO RSZ-0008] No violating pins found.
        3* |       0 |       1 |        0 |      0 |     0 |    +0.9% |   -0.268 |       -0.3 |       -0.3 |      4 | r2/D
     final |       0 |       1 |        0 |      0 |     0 |    +0.9% |   -0.268 |       -0.3 |       -0.3 |      1 | r2/D
 ------------------------------------------------------------------------------------------------------------------------------

src/rsz/test/repair_setup_phase_wns_cone.ok

@@ -50,8 +50,6 @@ Path Type: max
 ------------------------------------------------------------------------------------------------------------------------------
        0* |       0 |       0 |        0 |      0 |     0 |    +0.0% |   -0.333 |       -0.3 |       -0.4 |      4 | r2/D
 [INFO RSZ-0219] Adaptive cone threshold: no margin yielded target range, using endpoint slack as threshold=-0.333, collecting 4 of 6 pins (66.7%)
-[INFO RSZ-0008] No violating pins found.
-[INFO RSZ-0008] No violating pins found.
        3* |       1 |       2 |        0 |      0 |     0 |    +0.0% |   -0.225 |       -0.2 |       -0.2 |      4 | r2/D
     final |       1 |       2 |        0 |      0 |     0 |    +0.0% |   -0.225 |       -0.2 |       -0.2 |      1 | r2/D
 ------------------------------------------------------------------------------------------------------------------------------