Implement the remaining Windows filesystem functions (#3166)

Now that the filesystem implementation is now complete, the previous
test filters on Windows can be removed. Some of the tests only pass when
certain environment variables have been set on Windows so an extra step
has been added in the wasi test runner script to modify the test config
files before the tests begin.

tests/wamr-test-suites/wasi-test-script/run_wasi_tests.sh

@@ -41,6 +41,12 @@ readonly THREAD_INTERNAL_TESTS="${WAMR_DIR}/core/iwasm/libraries/lib-wasi-thread
 readonly THREAD_STRESS_TESTS="${WAMR_DIR}/core/iwasm/libraries/lib-wasi-threads/stress-test/"
 readonly LIB_SOCKET_TESTS="${WAMR_DIR}/core/iwasm/libraries/lib-socket/test/"
 
+add_env_key_to_test_config_file() {
+    filepath="tests/$2/testsuite/$3.json"
+    modified_contents=$(jq ".env.$1 = 1" "$filepath")
+    echo "$modified_contents" > "$filepath"
+}
+
 run_aot_tests () {
     local -n tests=$1
     local -n excluded_tests=$2
@@ -95,6 +101,15 @@ if [[ $MODE != "aot" ]];then
 
     export TEST_RUNTIME_EXE="${IWASM_CMD}"
 
+    # Some of the WASI test assertions can be controlled via environment
+    # variables. The following ones are set on Windows so that the tests pass.
+    if [ "$PLATFORM" == "windows" ]; then
+        add_env_key_to_test_config_file NO_DANGLING_FILESYSTEM rust symlink_loop
+        add_env_key_to_test_config_file NO_DANGLING_FILESYSTEM rust dangling_symlink
+        add_env_key_to_test_config_file ERRNO_MODE_WINDOWS rust path_open_preopen
+        add_env_key_to_test_config_file NO_RENAME_DIR_TO_EMPTY_DIR rust path_rename
+    fi
+
     TEST_OPTIONS="-r adapters/wasm-micro-runtime.py \
         -t \
             ${C_TESTS} \