Improve issue search (#2387)

* Improve issue indexer

* Fix new issue sqlite bug

* Different test indexer paths for each db

* Add integration indexer paths to make clean

vendor/github.com/blevesearch/bleve/search/highlight/term_locations.go

@@ -23,7 +23,7 @@ import (
 
 type TermLocation struct {
 	Term           string
-	ArrayPositions []float64
+	ArrayPositions search.ArrayPositions
 	Pos            int
 	Start          int
 	End            int
@@ -103,15 +103,3 @@ func OrderTermLocations(tlm search.TermLocationMap) TermLocations {
 	sort.Sort(rv)
 	return rv
 }
-
-func SameArrayPositions(fieldArrayPositions []uint64, termLocationArrayPositions []float64) bool {
-	if len(fieldArrayPositions) != len(termLocationArrayPositions) {
-		return false
-	}
-	for i := 0; i < len(fieldArrayPositions); i++ {
-		if fieldArrayPositions[i] != uint64(termLocationArrayPositions[i]) {
-			return false
-		}
-	}
-	return true
-}