Problem: missed "break" in a switch leads to unexpected assertion failure
of 'myisamchk compressed_table'.

Fix: add the break.


storage/myisam/mi_check.c:
  Fix for bug#37537: myisamchk fails with Assertion failure with partitioned table
  
  In the record links check function (chk_data_link()) 
  missed "break" for case COMPRESSED_RECORD was added.