Allow direct allocation in old pointer space.

src/x64/stub-cache-x64.cc

Index: src/x64/stub-cache-x64.cc
diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc
index 2b014e35d6bd99b69c79ffc406726e063934a1c4..c1a055d6ecba73c8bcd6aeda37f724bfba3ee324 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -2961,8 +2961,8 @@ Handle<Code> ConstructStubCompiler::CompileConstructStub(
   __ cmpq(rcx, Immediate(instance_size));
   __ Check(equal, "Instance size of initial map changed.");
 #endif
-  __ AllocateInNewSpace(instance_size, rdx, rcx, no_reg,
-                        &generic_stub_call, NO_ALLOCATION_FLAGS);
+  __ Allocate(instance_size, rdx, rcx, no_reg, &generic_stub_call,
+              NO_ALLOCATION_FLAGS);
 
   // Allocated the JSObject, now initialize the fields and add the heap tag.
   // rbx: initial map
@@ -3396,7 +3396,7 @@ void KeyedStoreStubCompiler::GenerateStoreFastElement(
     __ j(not_equal, &check_capacity);
 
     int size = FixedArray::SizeFor(JSArray::kPreallocatedArrayElements);
-    __ AllocateInNewSpace(size, rdi, rbx, r8, &slow, TAG_OBJECT);
+    __ Allocate(size, rdi, rbx, r8, &slow, TAG_OBJECT);
 
     // rax: value
     // rcx: key
@@ -3530,7 +3530,7 @@ void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(
     __ j(not_equal, &check_capacity);
 
     int size = FixedDoubleArray::SizeFor(JSArray::kPreallocatedArrayElements);
-    __ AllocateInNewSpace(size, rdi, rbx, r8, &slow, TAG_OBJECT);
+    __ Allocate(size, rdi, rbx, r8, &slow, TAG_OBJECT);
 
     // rax: value
     // rcx: key