[lldb][NFC] Fix unsigned/signed cmp warning in MainLoopTest

The gtest checks compare all against unsigned int constants so this also needs
to be unsigned.

diff --git a/lldb/unittests/Host/MainLoopTest.cpp b/lldb/unittests/Host/MainLoopTest.cpp
index 50a49b9..890f6eb 100644 (file)
--- a/lldb/unittests/Host/MainLoopTest.cpp
+++ b/lldb/unittests/Host/MainLoopTest.cpp
@@ -158,8 +158,8 @@ TEST_F(MainLoopTest, UnmonitoredSignal) {
 TEST_F(MainLoopTest, TwoSignalCallbacks) {
   MainLoop loop;
   Status error;
-  int callback2_count = 0;
-  int callback3_count = 0;
+  unsigned callback2_count = 0;
+  unsigned callback3_count = 0;
 
   auto handle = loop.RegisterSignal(SIGUSR1, make_callback(), error);
   ASSERT_TRUE(error.Success());