[SPARK-7358][SQL] Move DataFrame mathfunctions into functions

After a discussion on the user mailing list, it was decided to put all UDF's under `o.a.s.sql.functions`

cc rxin

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #5923 from brkyvz/move-math-funcs and squashes the following commits:

a8dc3f7 [Burak Yavuz] address comments
cf7a7bb [Burak Yavuz] [SPARK-7358] Move DataFrame mathfunctions into functions

1 files changed, 2 insertions, 2 deletions

diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ExpressionEvaluationSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ExpressionEvaluationSuite.scala
index fa71001c93..faaa55aa5e 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ExpressionEvaluationSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ExpressionEvaluationSuite.scala
@@ -1217,11 +1217,11 @@ class ExpressionEvaluationSuite extends ExpressionEvaluationBaseSuite {
     unaryMathFunctionEvaluation(Tanh, math.tanh)
   }
 
-  test("toDeg") {
+  test("toDegrees") {
     unaryMathFunctionEvaluation(ToDegrees, math.toDegrees)
   }
 
-  test("toRad") {
+  test("toRadians") {
     unaryMathFunctionEvaluation(ToRadians, math.toRadians)
   }