lib: rename internalBinding to _internalBinding

lib/internal/bootstrap/loaders.js

@@ -161,11 +161,12 @@ const schemelessBlockList = new SafeSet([
 }
 
 // Set up internalBinding() in the closure.
-let internalBinding;
+// Do not use `internalBinding` variable name due to the breakage of TypeScript autocompletion.
+let _internalBinding;
 {
   const bindingObj = { __proto__: null };
   // eslint-disable-next-line no-global-assign
-  internalBinding = function internalBinding(module) {
+  _internalBinding = function internalBinding(module) {
     let mod = bindingObj[module];
     if (typeof mod !== 'object') {
       mod = bindingObj[module] = getInternalBinding(module);
@@ -180,7 +181,7 @@ const {
   builtinIds,
   compileFunction,
   setInternalLoaders,
-} = internalBinding('builtins');
+} = _internalBinding('builtins');
 
 const getOwn = (target, property, receiver) => {
   return ObjectPrototypeHasOwnProperty(target, property) ?
@@ -278,7 +279,7 @@ class BuiltinModule {
 
   getESMFacade() {
     if (this.module) return this.module;
-    const { ModuleWrap } = internalBinding('module_wrap');
+    const { ModuleWrap } = _internalBinding('module_wrap');
     // TODO(aduh95): move this to C++, alongside the initialization of the class.
     ObjectSetPrototypeOf(ModuleWrap.prototype, null);
     const url = `node:${this.id}`;
@@ -328,7 +329,7 @@ class BuiltinModule {
       const fn = compileFunction(id);
       // Arguments must match the parameters specified in
       // BuiltinLoader::LookupAndCompile().
-      fn(this.exports, requireFn, this, process, internalBinding, primordials);
+      fn(this.exports, requireFn, this, process, _internalBinding, primordials);
 
       this.loaded = true;
     } finally {
@@ -345,7 +346,7 @@ class BuiltinModule {
 // Think of this as module.exports in this file even though it is not
 // written in CommonJS style.
 const loaderExports = {
-  internalBinding,
+  internalBinding: _internalBinding,
   BuiltinModule,
   require: requireBuiltin,
 };
@@ -372,4 +373,4 @@ function requireWithFallbackInDeps(request) {
 }
 
 // Store the internal loaders in C++.
-setInternalLoaders(internalBinding, requireBuiltin);
+setInternalLoaders(_internalBinding, requireBuiltin);