perf(napi): optimize primitive napi functions (#16163)

This optimization applies on `napi_get_undefined`, `napi_get_null` &
`napi_get_boolean`.

```
# main

benchmark               time (avg)             (min … max)       p75       p99      p995
---------------------------------------------------------- -----------------------------
warmup              482.55 ps/iter   (462.5 ps … 15.67 ns)    475 ps    525 ps  829.1 ps
napi_get_undefined   25.07 ns/iter   (24.03 ns … 36.87 ns)  25.37 ns  27.09 ns  34.85 ns
```

```
# This patch

benchmark               time (avg)             (min … max)       p75       p99      p995
---------------------------------------------------------- -----------------------------
warmup              484.78 ps/iter    (462.5 ps … 14.4 ns)    475 ps  554.1 ps  583.3 ps
napi_get_undefined   15.52 ns/iter   (15.35 ns … 22.14 ns)  15.41 ns  17.18 ns  20.02 ns
```

2 files changed, 25 insertions, 0 deletions

diff --git a/test_napi/src/lib.rs b/test_napi/src/lib.rs
index e058686c5..dd0c7cbed 100644
--- a/test_napi/src/lib.rs
+++ b/test_napi/src/lib.rs
@@ -10,6 +10,7 @@ pub mod callback;
 pub mod coerce;
 pub mod numbers;
 pub mod object_wrap;
+pub mod primitives;
 pub mod promise;
 pub mod properties;
 pub mod strings;
@@ -67,6 +68,7 @@ unsafe extern "C" fn napi_register_module_v1(
   numbers::init(env, exports);
   typedarray::init(env, exports);
   array::init(env, exports);
+  primitives::init(env, exports);
   properties::init(env, exports);
   promise::init(env, exports);
   coerce::init(env, exports);
diff --git a/test_napi/src/primitives.rs b/test_napi/src/primitives.rs
new file mode 100644
index 000000000..c5fbbba04
--- /dev/null
+++ b/test_napi/src/primitives.rs
@@ -0,0 +1,23 @@
+use napi_sys::*;
+use std::ptr;
+
+extern "C" fn test_get_undefined(
+  env: napi_env,
+  _: napi_callback_info,
+) -> napi_value {
+  let mut result = ptr::null_mut();
+  unsafe { napi_get_undefined(env, &mut result) };
+  result
+}
+
+pub fn init(env: napi_env, exports: napi_value) {
+  let properties = &[crate::new_property!(
+    env,
+    "test_get_undefined\0",
+    test_get_undefined
+  )];
+
+  unsafe {
+    napi_define_properties(env, exports, properties.len(), properties.as_ptr())
+  };
+}