console,util: fix missing recursion end while inspecting prototypes

lib/internal/util/inspect.js

@@ -351,7 +351,7 @@ function getEmptyFormatArray() {
   return [];
 }
 
-function getConstructorName(obj, ctx) {
+function getConstructorName(obj, ctx, recurseTimes) {
   let firstProto;
   const tmp = obj;
   while (obj) {
@@ -372,10 +372,23 @@ function getConstructorName(obj, ctx) {
     return null;
   }
 
-  return `${internalGetConstructorName(tmp)} <${inspect(firstProto, {
-    ...ctx,
-    customInspect: false
-  })}>`;
+  const res = internalGetConstructorName(tmp);
+
+  if (recurseTimes > ctx.depth && ctx.depth !== null) {
+    return `${res} <Complex prototype>`;
+  }
+
+  const protoConstr = getConstructorName(firstProto, ctx, recurseTimes + 1);
+
+  if (protoConstr === null) {
+    return `${res} <${inspect(firstProto, {
+      ...ctx,
+      customInspect: false,
+      depth: -1
+    })}>`;
+  }
+
+  return `${res} <${protoConstr}>`;
 }
 
 function getPrefix(constructor, tag, fallback) {
@@ -581,7 +594,7 @@ function formatValue(ctx, value, recurseTimes, typedArray) {
 function formatRaw(ctx, value, recurseTimes, typedArray) {
   let keys;
 
-  const constructor = getConstructorName(value, ctx);
+  const constructor = getConstructorName(value, ctx, recurseTimes);
   let tag = value[Symbol.toStringTag];
   // Only list the tag in case it's non-enumerable / not an own property.
   // Otherwise we'd print this twice.

test/parallel/test-util-inspect.js

@@ -2114,6 +2114,21 @@ assert.strictEqual(
     inspect(obj),
     "Array <[Object: null prototype] {}> { '0': 1, '1': 2, '2': 3 }"
   );
+
+  StorageObject.prototype = Object.create(null);
+  Object.setPrototypeOf(StorageObject.prototype, Object.create(null));
+  Object.setPrototypeOf(
+    Object.getPrototypeOf(StorageObject.prototype),
+    Object.create(null)
+  );
+  assert.strictEqual(
+    util.inspect(new StorageObject()),
+    'StorageObject <Object <Object <[Object: null prototype] {}>>> {}'
+  );
+  assert.strictEqual(
+    util.inspect(new StorageObject(), { depth: 1 }),
+    'StorageObject <Object <Object <Complex prototype>>> {}'
+  );
 }
 
 // Check that the fallback always works.