Add Windows libs test to current_py_cc_libs tests

Reuses the existing cc_test targeting the stable ABI on Windows. Since
this prompts MSVC to search for libs/python3.lib, it serves as a check
that the library search path is intact on Windows.

Author: nicholasjng

tests/cc/current_py_cc_libs/BUILD.bazel

@@ -31,3 +31,19 @@ cc_test(
         "@rules_python//python/cc:current_py_cc_libs",
     ],
 )
+
+# This is technically a headers test, but since the pyconfig.h header
+# designates the appropriate lib to link on Win+MSVC, this test verifies that
+# the expected Windows libraries are all present in the expected location.
+# Since we define the Py_LIMITED_API macro, we expect the linker to go search
+# for libs/python3.lib.
+# buildifier: disable=native-cc
+cc_test(
+    name = "python_libs_linking_windows_test",
+    srcs = ["python_libs_linking_test.cc"],
+    defines = ["Py_LIMITED_API=0x030A0000"],
+    target_compatible_with = ["@platforms//os:windows"],
+    deps = [
+        "@rules_python//python/cc:current_py_cc_headers",
+    ],
+)

tests/cc/current_py_cc_libs/python_libs_linking_test.cc

@@ -12,7 +12,6 @@ int main(int argc, char** argv) {
   // To make it actually run, more custom initialization is necessary.
   // See https://docs.python.org/3/c-api/intro.html#embedding-python
   Py_Initialize();
-  PyRun_SimpleString("print('Hello, world')\n");
   Py_Finalize();
   return 0;
 }