Addressed Review Comments

Author: HemangGadhavi

lldb/unittests/Host/HostTest.cpp

@@ -19,6 +19,7 @@
 #include "llvm/Testing/Support/Error.h"
 #include "gtest/gtest.h"
 #include <future>
+#include <thread>
 
 using namespace lldb_private;
 using namespace llvm;
@@ -109,6 +110,7 @@ TEST(Host, FindProcesses) {
     exit_status.set_value(status);
   });
   ASSERT_THAT_ERROR(Host::LaunchProcess(info).takeError(), Succeeded());
+  std::this_thread::sleep_for(std::chrono::milliseconds(1000));
   ASSERT_TRUE(Host::FindProcesses(match, processes));
   ASSERT_EQ(processes[0].GetArg0(), TestMainArgv0);
   ASSERT_THAT(exit_status.get_future().get(), 0);