[stubs] Unify (and optimize) implementation of ToObject.

src/compiler/typer.cc

Index: src/compiler/typer.cc
diff --git a/src/compiler/typer.cc b/src/compiler/typer.cc
index 85b73c825f549da003767458007df90f19f5ec54..aabcf4b5a8fd71f192918160dc6987502dac3638 100644
--- a/src/compiler/typer.cc
+++ b/src/compiler/typer.cc
@@ -1559,6 +1559,8 @@ Bounds Typer::Visitor::TypeJSCallRuntime(Node* node) {
       return Bounds(Type::None(), Type::Range(0, 32, zone()));
     case Runtime::kInlineStringGetLength:
       return Bounds(Type::None(), Type::Range(0, String::kMaxLength, zone()));
+    case Runtime::kInlineToObject:
+      return Bounds(Type::None(), Type::Receiver());
     default:
       break;
   }