tweaks for enabling unity builds

mostly changes to make sure anonymous namespaces don't clash and a change to avoid windows headers from leaking into other compilation units

unity builds are not yet enabled by default, but can be enabled by uncommenting this line in the root `xmake.lua`

```
--add_rules("c++.unity_build")
```

1 files changed, 2 insertions, 2 deletions

diff --git a/zenutil/zenserverprocess.cpp b/zenutil/zenserverprocess.cpp
index 3d9324af9..b43313b7c 100644
--- a/zenutil/zenserverprocess.cpp
+++ b/zenutil/zenserverprocess.cpp
@@ -376,7 +376,7 @@ ZenServerState::ZenServerEntry::AddSponsorProcess(uint32_t PidToAdd)
 
 //////////////////////////////////////////////////////////////////////////
 
-std::atomic<int> TestCounter{0};
+std::atomic<int> ZenServerTestCounter{0};
 
 ZenServerEnvironment::ZenServerEnvironment()
 {
@@ -416,7 +416,7 @@ ZenServerEnvironment::CreateNewTestDir()
 	using namespace std::literals;
 
 	ExtendableWideStringBuilder<256> TestDir;
-	TestDir << "test"sv << int64_t(++TestCounter);
+	TestDir << "test"sv << int64_t(++ZenServerTestCounter);
 
 	std::filesystem::path TestPath = m_TestBaseDir / TestDir.c_str();