[turbofan] Add new JSIntrinsicsLowering reducer.

src/compiler/typer.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/bootstrapper.h"
 #include "src/compiler/graph-inl.h"
 #include "src/compiler/graph-reducer.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/node.h"
 #include "src/compiler/node-properties-inl.h"
@@ skipping 1424 matching lines @@
   return fun->IsFunction() ? fun->AsFunction()->Result() : Type::Any();
 }
 
 
 Bounds Typer::Visitor::TypeJSCallFunction(Node* node) {
   return TypeUnaryOp(node, JSCallFunctionTyper);  // We ignore argument types.
 }
 
 
 Bounds Typer::Visitor::TypeJSCallRuntime(Node* node) {
+  switch (CallRuntimeParametersOf(node->op()).id()) {
+    case Runtime::kInlineIsSmi:
+    case Runtime::kInlineIsNonNegativeSmi:
+    case Runtime::kInlineIsArray:
+    case Runtime::kInlineIsFunction:
+    case Runtime::kInlineIsRegExp:
+      return Bounds(Type::None(zone()), Type::Boolean(zone()));
+    default:
+      break;
+  }
   return Bounds::Unbounded(zone());
 }
 
 
 Bounds Typer::Visitor::TypeJSDebugger(Node* node) {
   return Bounds::Unbounded(zone());
 }
 
 
 // Simplified operators.
@@ skipping 662 matching lines @@
       TYPED_ARRAYS(TYPED_ARRAY_CASE)
 #undef TYPED_ARRAY_CASE
     }
   }
   return Type::Constant(value, zone());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8