[Support] Fix warnings

This patch fixes:

  third-party/unittest/googletest/include/gtest/gtest.h:1379:11:
  error: comparison of integers of different signs: 'const int' and
  'const unsigned int' [-Werror,-Wsign-compare]

  llvm/unittests/Support/CommandLineTest.cpp:2294:3: note: in
  instantiation of function template specialization
  'testing::internal::EqHelper::Compare<int, unsigned int, nullptr>'
  requested here

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/unittests/Support/CommandLineTest.cpp b/llvm/unittests/Support/CommandLineTest.cpp
index 328674a..a9d0790 100644
--- a/llvm/unittests/Support/CommandLineTest.cpp
+++ b/llvm/unittests/Support/CommandLineTest.cpp
@@ -2291,10 +2291,10 @@ TEST(CommandLineTest, SubCommandGroups) {
   // The "--opt12" option is expected to be added to both subcommands in the
   // group, but not to the top-level "no subcommand" pseudo-subcommand or the
   // "sc3" subcommand.
-  EXPECT_EQ(1, SC1.OptionsMap.size());
+  EXPECT_EQ(1U, SC1.OptionsMap.size());
   EXPECT_TRUE(SC1.OptionsMap.contains("opt12"));
 
-  EXPECT_EQ(1, SC2.OptionsMap.size());
+  EXPECT_EQ(1U, SC2.OptionsMap.size());
   EXPECT_TRUE(SC2.OptionsMap.contains("opt12"));
 
   EXPECT_FALSE(cl::SubCommand::getTopLevel().OptionsMap.contains("opt12"));