VS: Fix WinRT component references

WinRT components need to be referenced in a similar way that managed
code libraries are referenced.  Validate that the library reference is a
WinRT component and reference it through the project.

Add test coverage for `VS_WINRT_COMPONENT`.  While at it, fix the IOT
reference failing on Win10 SDK 17763 which doesn't include it anymore.

Fixes: #18846

3 files changed, 39 insertions, 0 deletions

diff --git a/Tests/VSWinStorePhone/WinRT/Batman.cpp b/Tests/VSWinStorePhone/WinRT/Batman.cpp
new file mode 100644
index 0000000..e092258
--- /dev/null
+++ b/Tests/VSWinStorePhone/WinRT/Batman.cpp
@@ -0,0 +1,14 @@
+#include "Batman.h"
+
+using namespace JusticeLeagueWinRT;
+using namespace Platform;
+
+Batman::Batman()
+{
+}
+
+void Batman::savePeople()
+{
+  int i = 0;
+  i++;
+}
diff --git a/Tests/VSWinStorePhone/WinRT/Batman.h b/Tests/VSWinStorePhone/WinRT/Batman.h
new file mode 100644
index 0000000..e2dcabc
--- /dev/null
+++ b/Tests/VSWinStorePhone/WinRT/Batman.h
@@ -0,0 +1,12 @@
+#pragma once
+
+namespace JusticeLeagueWinRT {
+public
+ref class Batman sealed
+{
+public:
+  Batman();
+
+  void savePeople();
+};
+}
diff --git a/Tests/VSWinStorePhone/WinRT/CMakeLists.txt b/Tests/VSWinStorePhone/WinRT/CMakeLists.txt
new file mode 100644
index 0000000..bb93333
--- /dev/null
+++ b/Tests/VSWinStorePhone/WinRT/CMakeLists.txt
@@ -0,0 +1,13 @@
+project(JusticeLeagueWinRT CXX)
+
+# create project
+add_library(JusticeLeagueWinRT SHARED
+  "${CMAKE_CURRENT_SOURCE_DIR}/Batman.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/Batman.h"
+)
+
+set_target_properties(JusticeLeagueWinRT PROPERTIES
+  VS_WINRT_COMPONENT TRUE
+  VS_GLOBAL_ROOTNAMESPACE "JusticeLeagueWinRT"
+  OUTPUT_NAME "JusticeLeagueWinRT"
+)