8024255: When a keyword is used as object property name, the property can not be deleted
Reviewed-by: jlaskey, lagergren
SyntaxError: test/script/basic/NASHORN-40.js#32<eval>:1:6 Expected an operand but found .
print(.foo)
^
SyntaxError: test/script/basic/NASHORN-40.js#38<eval>:1:0 Expected an operand but found .
.bar = 3423;
^