Fix swiftshader_reactor_llvm_unittests under UBSan Vptr
Fix swiftshader_reactor_llvm_unittests under UBSan Vptr

Like the existing workaround, we need to add more source files to get class definitions required for UBSan Vptr.

Change-Id: I7d0abe2a7ee1b1d991ece36c508f235c50d7591e
Bug: chromium:1152803
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/50748
Reviewed-by: Alexis Hétu <1c7141772178a7e80858c3db5052b328076f08f4@google.com>
Reviewed-by: Nicolas Capens <51edc787c30f24c4904e8ffbb5523c3a9f7a451d@google.com>
Tested-by: Arthur Eubanks <7d3b31342295e85f5999ea978603cae1242e12e8@google.com>
Presubmit-Ready: Arthur Eubanks <7d3b31342295e85f5999ea978603cae1242e12e8@google.com>

bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,bkaradzic/SwiftShader