Fix a problem in fts3_write.c causing stack memory to be referenced after it is out of scope

third_party/sqlite/src/ext/fts3/fts3_write.c

Index: third_party/sqlite/src/ext/fts3/fts3_write.c
diff --git a/third_party/sqlite/src/ext/fts3/fts3_write.c b/third_party/sqlite/src/ext/fts3/fts3_write.c
index 1e71874384aab94f3624e2c8f4595ad4ee89fd26..3636c7dfc15db798a9aae562d2420a4f09ae9954 100644
--- a/third_party/sqlite/src/ext/fts3/fts3_write.c
+++ b/third_party/sqlite/src/ext/fts3/fts3_write.c
@@ -1238,13 +1238,13 @@ int sqlite3Fts3SegReaderPending(
   Fts3SegReader **ppReader        /* OUT: SegReader for pending-terms */
 ){
   Fts3SegReader *pReader = 0;     /* Fts3SegReader object to return */
+  Fts3HashElem *pE;               /* Iterator variable */
   Fts3HashElem **aElem = 0;       /* Array of term hash entries to scan */
   int nElem = 0;                  /* Size of array at aElem */
   int rc = SQLITE_OK;             /* Return Code */
 
   if( isPrefix ){
     int nAlloc = 0;               /* Size of allocated array at aElem */
-    Fts3HashElem *pE = 0;         /* Iterator variable */
 
     for(pE=fts3HashFirst(&p->pendingTerms); pE; pE=fts3HashNext(pE)){
       char *zKey = (char *)fts3HashKey(pE);
@@ -1276,7 +1276,7 @@ int sqlite3Fts3SegReaderPending(
     }
 
   }else{
-    Fts3HashElem *pE = fts3HashFindElem(&p->pendingTerms, zTerm, nTerm);
+    pE = fts3HashFindElem(&p->pendingTerms, zTerm, nTerm);
     if( pE ){
       aElem = &pE;
       nElem = 1;