move dataviewSharedArrayBuffer gate out of experimentalFeatures

Signed-off-by: Balakrishna Avulapati <ba@bavulapati.com>

Author: bavulapati

eslint.config.js

@@ -24,6 +24,7 @@ export default defineConfig([
         gc: "readonly",
         gcUntil: "readonly",
         experimentalFeatures: "readonly",
+        runtimeFeatures: "readonly",
         napiVersion: "readonly",
         skipTest: "readonly",
       },

implementors/node/features.js

@@ -1,9 +1,10 @@
-// Declares which experimental Node-API features this runtime supports.
-// Each key corresponds to a NODE_API_EXPERIMENTAL_HAS_* compile-time macro.
+// Declares which Node-API features this runtime supports, for tests to gate on.
 // Other implementors should set unsupported features to false or omit them.
 
 const [major, minor, patch] = process.version.slice(1).split(".").map(Number);
 
+// Experimental features behind the NAPI_EXPERIMENTAL define. Each key
+// corresponds to a NODE_API_EXPERIMENTAL_HAS_* compile-time macro.
 globalThis.experimentalFeatures = {
   // node_api_is_sharedarraybuffer and node_api_create_sharedarraybuffer were
   // added in Node.js v24.9.0. Earlier versions do not export these symbols,
@@ -12,6 +13,10 @@ globalThis.experimentalFeatures = {
   createObjectWithProperties: true,
   setPrototype: true,
   postFinalizer: true,
+};
+
+// Version-dependent behaviors of stable (non-experimental) Node-API.
+globalThis.runtimeFeatures = {
   // napi_create_dataview accepts a SharedArrayBuffer-backed buffer only since
   // Node.js v24.13.1 and v25.4.0 (nodejs/node#60473). It was not backported to
   // v20.x or v22.x, where such calls fail with "invalid argument".

tests/js-native-api/test_dataview/test_sharedarraybuffer.js

@@ -2,7 +2,7 @@
 
 // napi_create_dataview accepts a SharedArrayBuffer-backed buffer only on newer
 // Node.js releases (see implementors/node/features.js).
-if (!experimentalFeatures.dataviewSharedArrayBuffer) {
+if (!runtimeFeatures.dataviewSharedArrayBuffer) {
   skipTest();
 }