Replace == between class constants by ".equals"

This is needed since class constants may not be unique. Indeed, there
may be multiple identical class contants in the constant pool.
Bug: 16709921

(cherry picked from commit 8863d0fd24b293032a7e749e89b6f36524e0ff4f)

Change-Id: I63c07ebf03d67eb942aec6364c7e02c631744612
1 file changed