IDEA-339878: report freezes as errors to increase visibility

GitOrigin-RevId: 86cea86950bf575c1d652b62c012c6e7f10466f5

platform/platform-impl/src/com/intellij/diagnostic/PerformanceWatcherImpl.kt

@@ -436,12 +436,7 @@ private fun postProcessReportFolder(durationMs: Long, task: SamplingTask, dir: P
   }
 
   val message = "UI was frozen for ${durationMs}ms, details saved to $reportDir"
-  if (PluginManagerCore.isRunningFromSources()) {
-    LOG.info(message)
-  }
-  else {
-    LOG.warn(message)
-  }
+  LOG.error(message)
   return reportDir
 }