CSAS errors if - used in object name

[rmoff]

Error should be better here. Either KSQL is parsing the input wrong (and should accept the -) or if - is not a valid character to use in the object name then it should tell the user so.

ksql> CREATE STREAM mysql-customers AS SELECT * FROM CUSTOMERS_SRC PARTITION BY ID;
line 1:20: mismatched input '-' expecting ';'
Caused by: line 1:20: mismatched input '-' expecting ';'
Caused by: null
ksql> CREATE STREAM mysql_customers AS SELECT * FROM CUSTOMERS_SRC PARTITION BY ID;

 Message
----------------------------
 Stream created and running
----------------------------

[rmoff]

Following in #1466