[interpreter] Add Interpreter{Entry,Exit}Trampoline builtins.

src/compiler/raw-machine-assembler.h

Index: src/compiler/raw-machine-assembler.h
diff --git a/src/compiler/raw-machine-assembler.h b/src/compiler/raw-machine-assembler.h
index 1e9a9502355ffe76f6a80d5e8119dc67ce7a9ad2..5fc710772e9d4645d3f1e2bdbe59ed9d8583cc78 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -105,6 +105,9 @@ class RawMachineAssembler {
     Unique<HeapObject> val = Unique<HeapObject>::CreateUninitialized(object);
     return NewNode(common()->HeapConstant(val));
   }
+  Node* HeapConstant(Unique<HeapObject> object) {
+    return NewNode(common()->HeapConstant(object));
+  }
   Node* ExternalConstant(ExternalReference address) {
     return NewNode(common()->ExternalConstant(address));
   }