47f72aede1
This was using `struct data` which is way to common a name to use in an lldb expression, and was causing occasional failures in the TSan report gatherer. The structure doesn't need to have a tag, so remove it to avoid future problems. The same job was done for the other sanitizers in D145569, but this one was overlooked. Differential Revision: https://reviews.llvm.org/D149394