Added a test for skip_name_resolve to the sys_vars suite.

mysql-test/suite/sys_vars/r/skip_name_resolve_basic.result

+SHOW VARIABLES LIKE 'skip_name_resolve';
+Variable_name	Value
+skip_name_resolve	ON
+SHOW GLOBAL VARIABLES LIKE 'skip_name_resolve';
+Variable_name	Value
+skip_name_resolve	ON
+SHOW SESSION VARIABLES LIKE 'skip_name_resolve';
+Variable_name	Value
+skip_name_resolve	ON
+SELECT @@skip_name_resolve;
+@@skip_name_resolve
+1
+SELECT @@LOCAL.skip_name_resolve;
+ERROR HY000: Variable 'skip_name_resolve' is a GLOBAL variable
+SELECT @@GLOBAL.skip_name_resolve;
+@@GLOBAL.skip_name_resolve
+1
+SET @@skip_name_resolve=0;
+ERROR HY000: Variable 'skip_name_resolve' is a read only variable
+SET @@LOCAL.skip_name_resolve=0;
+ERROR HY000: Variable 'skip_name_resolve' is a read only variable
+SET @@GLOBAL.skip_name_resolve=0;
+ERROR HY000: Variable 'skip_name_resolve' is a read only variable

mysql-test/suite/sys_vars/t/skip_name_resolve_basic-master.opt

+--skip-name-resolve

mysql-test/suite/sys_vars/t/skip_name_resolve_basic.test

+SHOW VARIABLES LIKE 'skip_name_resolve';
+SHOW GLOBAL VARIABLES LIKE 'skip_name_resolve';
+SHOW SESSION VARIABLES LIKE 'skip_name_resolve';
+
+SELECT @@skip_name_resolve;
+--error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SELECT @@LOCAL.skip_name_resolve;
+SELECT @@GLOBAL.skip_name_resolve;
+
+--error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SET @@skip_name_resolve=0;
+--error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SET @@LOCAL.skip_name_resolve=0;
+--error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SET @@GLOBAL.skip_name_resolve=0;