SwiftReflectionTest: enable builds on non-Apple targets

Ensure that the swift-reflection-test binary is built for Windows by
default.  This is preventing tests from executing on Windows.  There are
dependencies which were already specified for Linux even, the tool just
was disabled due to an invalid check.

Author: compnerd

stdlib/private/SwiftReflectionTest/CMakeLists.txt

@@ -9,17 +9,15 @@ if (SWIFT_INCLUDE_TESTS)
     SWIFT_MODULE_DEPENDS_TVOS Darwin
     SWIFT_MODULE_DEPENDS_WATCHOS Darwin
     SWIFT_MODULE_DEPENDS_LINUX Glibc
+    SWIFT_MODULE_DEPENDS_WINDOWS MSVCRT
     INSTALL_IN_COMPONENT stdlib-experimental
     DARWIN_INSTALL_NAME_DIR "${SWIFT_DARWIN_STDLIB_PRIVATE_INSTALL_NAME_DIR}")
 
   foreach(SDK ${SWIFT_SDKS})
-    if("${SDK}" IN_LIST SWIFT_APPLE_PLATFORMS)
-      foreach(ARCH ${SWIFT_SDK_${SDK}_ARCHITECTURES})
-        set(VARIANT_SUFFIX "-${SWIFT_SDK_${SDK}_LIB_SUBDIR}-${ARCH}")
-        add_dependencies(
-          "swiftSwiftReflectionTest${VARIANT_SUFFIX}"
-          "swift-reflection-test${VARIANT_SUFFIX}")
-      endforeach()
-    endif()
+    foreach(ARCH ${SWIFT_SDK_${SDK}_ARCHITECTURES})
+      set(VARIANT_SUFFIX "-${SWIFT_SDK_${SDK}_LIB_SUBDIR}-${ARCH}")
+      add_dependencies("swiftSwiftReflectionTest${VARIANT_SUFFIX}"
+        "swift-reflection-test${VARIANT_SUFFIX}")
+    endforeach()
   endforeach()
 endif()