Revert "Disable test 426 on redefinition configurations."

This reverts commit 68a2386989a081b5937897ed7fb82338418d53be.

Reason for revert: Relanding R8 4.0.12-dev after test fixup

Bug: 236940335
Change-Id: I8acc186c4438b3bc2062706a8ec875daac886cfa
1 file changed