clang-error:fix clang-diagnostic-potentially-evaluated-expression error

This error is generated when expression with side effects is evaluated
despite being used as an operand to 'typeid'.

Change-Id: I72daa47f1c5b05b466e1635fe6d547db4b1da34b
Signed-off-by: Pavithra Barithaya <pavithra.b@ibm.com>