[SPARK-15618][SQL][MLLIB] Use SparkSession.builder.sparkContext if applicable.

## What changes were proposed in this pull request?

This PR changes function `SparkSession.builder.sparkContext(..)` from **private[sql]** into **private[spark]**, and uses it if applicable like the followings.
```
- val spark = SparkSession.builder().config(sc.getConf).getOrCreate()
+ val spark = SparkSession.builder().sparkContext(sc).getOrCreate()
```

## How was this patch tested?

Pass the existing Jenkins tests.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #13365 from dongjoon-hyun/SPARK-15618.

1 files changed, 5 insertions, 8 deletions

diff --git a/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveSparkSubmitSuite.scala b/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveSparkSubmitSuite.scala
index a4bbe96cf8..d56bede0cc 100644
--- a/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveSparkSubmitSuite.scala
+++ b/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveSparkSubmitSuite.scala
@@ -31,7 +31,7 @@ import org.scalatest.time.SpanSugar._
 
 import org.apache.spark._
 import org.apache.spark.internal.Logging
-import org.apache.spark.sql.{QueryTest, Row, SparkSession, SQLContext}
+import org.apache.spark.sql.{QueryTest, Row, SparkSession}
 import org.apache.spark.sql.catalyst.{FunctionIdentifier, TableIdentifier}
 import org.apache.spark.sql.catalyst.catalog.{CatalogFunction, FunctionResource, JarResource}
 import org.apache.spark.sql.expressions.Window
@@ -282,15 +282,12 @@ object SetWarehouseLocationTest extends Logging {
     val hiveWarehouseLocation = Utils.createTempDir()
     hiveWarehouseLocation.delete()
 
-    val conf = new SparkConf()
-    conf.set("spark.ui.enabled", "false")
     // We will use the value of spark.sql.warehouse.dir override the
     // value of hive.metastore.warehouse.dir.
-    conf.set("spark.sql.warehouse.dir", warehouseLocation.toString)
-    conf.set("hive.metastore.warehouse.dir", hiveWarehouseLocation.toString)
-
-    val sparkSession = SparkSession.builder
-      .config(conf)
+    val sparkSession = SparkSession.builder()
+      .config("spark.ui.enabled", "false")
+      .config("spark.sql.warehouse.dir", warehouseLocation.toString)
+      .config("hive.metastore.warehouse.dir", hiveWarehouseLocation.toString)
       .enableHiveSupport()
       .getOrCreate()