f627cbb15b
This is intended to cover the edge case in ConstraintLayout (and possibly in other places) where an attribute is defined as reference|enum. If we can not resolve the value as a reference, try to resolve it as an enum and return the value. Change-Id: I2817aa5d78500247a2e9aec5411586a1db13791d (cherry picked from commit b24b563654bf7c007f0912bf32fbab948fcb6daa)