Compile FastCloneShallowArrayStub using Crankshaft.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 47fd69d7ccc2c20140c5d181079eeec86257ebf2..a672df4dc7d304e3540ce0e9e7a71fee967ad59f 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -957,6 +957,7 @@ class HGraphBuilder {
         HValue* right,
         Token::Value token,
         Representation input_representation = Representation::Integer32());
+    void BeginCompareMapTrue(HValue* value, Handle<Map> map);
     void BeginFalse();
     void End();
 
@@ -1022,6 +1023,13 @@ class HGraphBuilder {
                          ElementsKind to_elements_kind,
                          HValue* length);
 
+  HValue* BuildCloneShallowArray(HContext* context,
+                                 HValue* boilerplate,
+                                 AllocationSiteMode mode,
+                                 ElementsKind kind,
+                                 BailoutId id,
+                                 int length);
+
  private:
   HGraphBuilder();
   CompilationInfo* info_;