LUCENE-9981: more efficient getCommonSuffix/Prefix, and more accurate 'effort limit', instead of precise output state limit, during determinize, for throwing TooComplexToDeterminizeException

Author: mikemccand

lucene/core/src/java/org/apache/lucene/index/IndexWriter.java

@@ -4784,7 +4784,7 @@ public int length() {
                              (mergeState.mergeFieldInfos.hasNorms() ? "norms" : "no norms") + "; " +
                              (mergeState.mergeFieldInfos.hasDocValues() ? "docValues" : "no docValues") + "; " +
                              (mergeState.mergeFieldInfos.hasProx() ? "prox" : "no prox") + "; " +
-                             (mergeState.mergeFieldInfos.hasProx() ? "freqs" : "no freqs") + "; " +
+                             (mergeState.mergeFieldInfos.hasFreq() ? "freqs" : "no freqs") + "; " +
                              (mergeState.mergeFieldInfos.hasPointValues() ? "points" : "no points") + "; " +
                              String.format(Locale.ROOT,
                                            "%.1f sec%s to merge segment [%.2f MB, %.2f MB/sec]",