IMPALA-3812: Fix error message for unsupported types

Before this patch an unclear error message was returned if DATE or
DATETIME appeared in the select list after a star expansion. This was
because DATE and DATETIME PrimitiveType was serialized as INVALID_TYPE.
This is fixed by serializing correctly.

Change-Id: I9019b4bfd219f94e554c795befd3ff5e39706ea9
Reviewed-on: http://gerrit.cloudera.org:8080/4859
Reviewed-by: Alex Behm <alex.behm@cloudera.com>
Tested-by: Internal Jenkins

testdata/datasets/functional/functional_schema_template.sql

@@ -1434,6 +1434,7 @@ unsupported_types
 CREATE EXTERNAL TABLE IF NOT EXISTS {db_name}{db_suffix}.{table_name} (
   int_col INT,
   dec_col DECIMAL,
+  date_col DATE,
   str_col STRING,
   bin_col BINARY,
   bigint_col BIGINT)