Fix some build errors from updated VS build agents (#18927)

Looks like there's a new VS version on the build agents. This just goes
through and fixes any issues they found.

There's still a COMPILER CRASH though.

Author: carlos-zamora

src/cascadia/TerminalApp/TerminalPage.cpp

@@ -2303,7 +2303,7 @@ namespace winrt::TerminalApp::implementation
     // for it. The Title change will be propagated upwards through the tab's
     // PropertyChanged event handler.
     void TerminalPage::_activePaneChanged(winrt::TerminalApp::TerminalTab sender,
-                                          Windows::Foundation::IInspectable args)
+                                          Windows::Foundation::IInspectable /*args*/)
     {
         if (const auto tab{ _GetTerminalTabImpl(sender) })
         {
@@ -5382,8 +5382,8 @@ namespace winrt::TerminalApp::implementation
         _sendDraggedTabToWindow(winrt::to_hstring(args.TargetWindow()), args.TabIndex(), std::nullopt);
     }
 
-    void TerminalPage::_onTabDroppedOutside(winrt::IInspectable sender,
-                                            winrt::MUX::Controls::TabViewTabDroppedOutsideEventArgs e)
+    void TerminalPage::_onTabDroppedOutside(winrt::IInspectable /*sender*/,
+                                            winrt::MUX::Controls::TabViewTabDroppedOutsideEventArgs /*e*/)
     {
         // Get the current pointer point from the CoreWindow
         const auto& pointerPoint{ CoreWindow::GetForCurrentThread().PointerPosition() };

src/cascadia/TerminalControl/InteractivityAutomationPeer.cpp

@@ -118,7 +118,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         return WrapArrayOfTextRangeProviders(pReturnVal);
     }
 
-    XamlAutomation::ITextRangeProvider InteractivityAutomationPeer::RangeFromChild(XamlAutomation::IRawElementProviderSimple childElement)
+    XamlAutomation::ITextRangeProvider InteractivityAutomationPeer::RangeFromChild(XamlAutomation::IRawElementProviderSimple /*childElement*/)
     {
         UIA::ITextRangeProvider* returnVal;
         // ScreenInfoUiaProvider doesn't actually use parameter, so just pass in nullptr

src/host/ut_host/Host.UnitTests.vcxproj

@@ -78,7 +78,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="..\..\inc\CommonState.hpp" />
+    <ClInclude Include="..\..\inc\test\CommonState.hpp" />
     <ClInclude Include="..\precomp.h" />
     <ClInclude Include="UnicodeLiteral.hpp" />
   </ItemGroup>

src/host/ut_host/Host.UnitTests.vcxproj.filters

@@ -83,7 +83,7 @@
     <ClInclude Include="..\precomp.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\inc\CommonState.hpp">
+    <ClInclude Include="..\..\inc\test\CommonState.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>