BACKGROUND:
Regular Create Table Statements properly keep the case on
a case insensitive file system like Windows or Mac OS X when
lower_case_table_names= 2 whereas while creating tables LIKE 
another (create table <tablename> LIKE <tablename>), the table 
name case is ignored on a case insensitive file system when 
lower_case_table_names= 2. This problem is mentioned as part 
of this bug report. This behaviour was annoying and not 
consistent with the documentation.

FIX:
This bug is fixed by populating the alias in local_create_info 
structure in mysql_create_like_table function when create table 
<tablename> LIKE <tablename> query is issued equal to alias 
information that is stored in create_info structure.This 
assignment was missing due to which this bug was happening.
Also a testcase has been written in lowercase_table2.test and
the corresponding result file has also been updated.