Apparently `MDNode` uniquing used to be optional. I suppose the
configure flag must have disappeared at some point. Change the test so
it actually tests uniquing, and remove the check for
`ENABLE_MDNODE_UNIQUING`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223617
91177308-0d34-0410-b5e6-
96231b3b80d8
MDNode *n5 = MDNode::getIfExists(Context, c1);
MDNode *n6 = MDNode::getIfExists(Context, c2);
EXPECT_NE(n1, n2);
-#ifdef ENABLE_MDNODE_UNIQUING
EXPECT_EQ(n1, n3);
-#else
- (void) n3;
-#endif
EXPECT_EQ(n4, n1);
EXPECT_EQ(n5, n2);
EXPECT_EQ(n6, (Value*)nullptr);