Remove support for pretenuring as it is not fully implemented and is currently turned on for a very…

runtime/vm/stub_code_ia32.cc

Index: runtime/vm/stub_code_ia32.cc
diff --git a/runtime/vm/stub_code_ia32.cc b/runtime/vm/stub_code_ia32.cc
index 836e4b5281cf8736e5d51786656c7f18d8719e64..589058760a8bb9d7da531f768e84e9c3fb3f1600 100644
--- a/runtime/vm/stub_code_ia32.cc
+++ b/runtime/vm/stub_code_ia32.cc
@@ -576,7 +576,7 @@ void StubCode::GenerateAllocateArrayStub(Assembler* assembler) {
   // EBX: allocation size.
 
   const intptr_t cid = kArrayCid;
-  Heap::Space space = Heap::SpaceForAllocation(cid);
+  Heap::Space space = Heap::kNew;
   __ movl(EDI, Address(THR, Thread::heap_offset()));
   __ movl(EAX, Address(EDI, Heap::TopOffset(space)));
   __ addl(EBX, EAX);
@@ -806,7 +806,7 @@ void StubCode::GenerateAllocateContextStub(Assembler* assembler) {
     // Now allocate the object.
     // EDX: number of context variables.
     const intptr_t cid = kContextCid;
-    Heap::Space space = Heap::SpaceForAllocation(cid);
+    Heap::Space space = Heap::kNew;
     __ movl(ECX, Address(THR, Thread::heap_offset()));
     __ movl(EAX, Address(ECX, Heap::TopOffset(space)));
     __ addl(EBX, EAX);
@@ -1018,7 +1018,7 @@ void StubCode::GenerateAllocationStubForClass(
     // Allocate the object and update top to point to
     // next object start and initialize the allocated object.
     // EDX: instantiated type arguments (if is_cls_parameterized).
-    Heap::Space space = Heap::SpaceForAllocation(cls.id());
+    Heap::Space space = Heap::kNew;
     __ movl(EDI, Address(THR, Thread::heap_offset()));
     __ movl(EAX, Address(EDI, Heap::TopOffset(space)));
     __ leal(EBX, Address(EAX, instance_size));