Merge pull request #21625 from compnerd/min-or-max

Author: swift-ci

stdlib/public/Platform/winsdk.modulemap

@@ -30,6 +30,12 @@ module WinSDK [system] [extern_c] {
       export *
     }
 
+    // api-ms-win-heapapi-l1-1-0.dll
+    module heap {
+      header "heapapi.h"
+      export *
+    }
+
     // api-ms-win-core-interlocked-l1-1-0.dll
     module interlocked {
       header "interlockedapi.h"