[Build][Minor] Fix building error & performance

1. When build the latest code with sbt, it throws exception like:
[error] /home/hcheng/git/catalyst/core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala:78: match may not be exhaustive.
[error] It would fail on the following input: UNKNOWN
[error]       val classNameByStatus = status match {
[error]

2. Potential performance issue when implicitly convert an Array[Any] to Seq[Any]

Author: Cheng Hao <hao.cheng@intel.com>

Closes #7611 from chenghao-intel/toseq and squashes the following commits:

cab75c5 [Cheng Hao] remove the toArray
24df682 [Cheng Hao] fix building error & performance

core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala

@@ -79,6 +79,7 @@ private[ui] class AllJobsPage(parent: JobsTab) extends WebUIPage("") {
         case JobExecutionStatus.SUCCEEDED => "succeeded"
         case JobExecutionStatus.FAILED => "failed"
         case JobExecutionStatus.RUNNING => "running"
+        case JobExecutionStatus.UNKNOWN => "unknown"
       }
 
       // The timeline library treats contents as HTML, so we have to escape them; for the

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/CatalystTypeConverters.scala

@@ -402,7 +402,7 @@ object CatalystTypeConverters {
     case d: JavaBigDecimal => BigDecimalConverter.toCatalyst(d)
     case seq: Seq[Any] => seq.map(convertToCatalyst)
     case r: Row => InternalRow(r.toSeq.map(convertToCatalyst): _*)
-    case arr: Array[Any] => arr.toSeq.map(convertToCatalyst).toArray
+    case arr: Array[Any] => arr.map(convertToCatalyst)
     case m: Map[_, _] =>
       m.map { case (k, v) => (convertToCatalyst(k), convertToCatalyst(v)) }.toMap
     case other => other