Fix a compile warning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71993 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/Support/ValueHandleTest.cpp b/unittests/Support/ValueHandleTest.cpp
index 89c8250..336e7d9 100644
--- a/unittests/Support/ValueHandleTest.cpp
+++ b/unittests/Support/ValueHandleTest.cpp
@@ -296,7 +296,7 @@
     }
     virtual void allUsesReplacedWith(Value *new_value) {
       ASSERT_TRUE(NULL != getValPtr());
-      EXPECT_EQ(1, getValPtr()->getNumUses());
+      EXPECT_EQ(1U, getValPtr()->getNumUses());
       EXPECT_EQ(NULL, AURWArgument);
       AURWArgument = new_value;
     }