This cannot occur. The initial stripping of <base>'s pointer type is
already handled outside the loop.

Bug: b/124388146

Change-Id: I55ea64e868308bfbab72aaefca0fd367916f6e69
Reviewed-on: https://swiftshader-review.googlesource.com/c/25488Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Chris Forbes <chrisforbes@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>