Fix compilation error in Release configuration

Clément Le Provost · Clément Le Provost · commit 5aa5917131e8 · 2016-07-21T14:59:06.000+02:00
When assertions were compiled out, the control flow would escape the `else` clause of a `guard` statement.
diff --git a/Source/Offline/MirroredIndex.swift b/Source/Offline/MirroredIndex.swift
@@ -759,11 +759,12 @@ import Foundation
             }
             
             let (queryContent, queryError) = self._searchOffline(query)
+            assert(queryContent != nil || queryError != nil)
             if queryError != nil {
                 error = queryError
                 break
             }
-            guard var returnedContent = queryContent else { assert(false, "Should never happen") }
+            var returnedContent = queryContent!
             returnedContent["index"] = self.indexName
             results.append(returnedContent)
             

Original file line number	Diff line number	Diff line change
`@@ -759,11 +759,12 @@ import Foundation`
`759`	`759`	`}`
`760`	`760`
`761`	`761`	`let (queryContent, queryError) = self._searchOffline(query)`
	`762`	`+ assert(queryContent != nil \|\| queryError != nil)`
`762`	`763`	`if queryError != nil {`
`763`	`764`	`error = queryError`
`764`	`765`	`break`
`765`	`766`	`}`
`766`		`- guard var returnedContent = queryContent else { assert(false, "Should never happen") }`
	`767`	`+ var returnedContent = queryContent!`
`767`	`768`	`returnedContent["index"] = self.indexName`
`768`	`769`	`results.append(returnedContent)`
`769`	`770`