[llvm] [KnownBits] Remove `hasConflict()` assertions (PR #94568)

[via llvm-commits]

================
@@ -752,8 +765,10 @@ TEST(KnownBitsTest, CommonBitsSet) {
           HasCommonBitsSet |= N1.intersects(N2);
         });
       });
-      EXPECT_EQ(!HasCommonBitsSet,
-                KnownBits::haveNoCommonBitsSet(Known1, Known2));
+      if (!Known1.hasConflict() && !Known2.hasConflict()) {
----------------
c8ef wrote:

I believe this is necessary because we permit conflicts in test generation. Therefore, even if we revert the set to zero, these tests will only pass when there are no conflicts.

https://github.com/llvm/llvm-project/pull/94568