Implemented folding of constant size allocation followed by dynamic size allocation.

src/code-stubs-hydrogen.cc

Index: src/code-stubs-hydrogen.cc
diff --git a/src/code-stubs-hydrogen.cc b/src/code-stubs-hydrogen.cc
index 29f650d71d352a913f9cd8dd2c6ecdbfb7950431..ac3a7451b67cef43713b0a7a552ecb7405121275 100644
--- a/src/code-stubs-hydrogen.cc
+++ b/src/code-stubs-hydrogen.cc
@@ -724,6 +724,7 @@ HValue* CodeStubGraphBuilderBase::BuildArrayNArgumentsConstructor(
       ? JSArrayBuilder::FILL_WITH_HOLE
       : JSArrayBuilder::DONT_FILL_WITH_HOLE;
   HValue* new_object = array_builder->AllocateArray(checked_length,
+                                                    max_alloc_length,
                                                     checked_length,
                                                     fill_mode);
   HValue* elements = array_builder->GetElementsLocation();