Cannot define an object literal with a getter for a symbol property

[andreabergia]

This is not allowed by rhino, but it should be:

obj = { get [Symbol.match]() {} }

The error printed is TypeError: The object is not a string, but that's confusing. The reason is that there is a code path where the symbol is casted to a string, which does not work.

[p-bakker]

Think this is a dup of #1614

[andreabergia]

@p-bakker you're right, it is!