lib: disambiguate native module to binding

Signed-off-by: Daeyeon Jeong <daeyeon.dev@gmail.com>

lib/internal/bootstrap/node.js

@@ -140,9 +140,9 @@ process.domain = null;
 process._exiting = false;
 
 // process.config is serialized config.gypi
-const nativeModule = internalBinding('builtins');
+const binding = internalBinding('builtins');
 
-const processConfig = JSONParse(nativeModule.config, (_key, value) => {
+const processConfig = JSONParse(binding.config, (_key, value) => {
   // The `reviver` argument of the JSONParse method will visit all the values of
   // the parsed config, including the "root" object, so there is no need to
   // explicitly freeze the config outside of this method
@@ -288,7 +288,7 @@ const features = {
   // This needs to be dynamic because --no-node-snapshot disables the
   // code cache even if the binary is built with embedded code cache.
   get cached_builtins() {
-    return nativeModule.hasCachedBuiltins();
+    return binding.hasCachedBuiltins();
   }
 };