Eliminate dependencies on assemblers and code stubs in precompiled runtime.

runtime/vm/object.h

Index: runtime/vm/object.h
diff --git a/runtime/vm/object.h b/runtime/vm/object.h
index e7316e74a049d32c0e6685c58185edadb25173f9..93460476c9a4fb315a6fe1663fb701f4310ee711 100644
--- a/runtime/vm/object.h
+++ b/runtime/vm/object.h
@@ -4936,12 +4936,14 @@ class Code : public Object {
     ASSERT(0 <= len && len <= kMaxElements);
     return RoundedAllocationSize(sizeof(RawCode) + (len * kBytesPerElement));
   }
+#if !defined(DART_PRECOMPILED_RUNTIME)
   static RawCode* FinalizeCode(const Function& function,
                                Assembler* assembler,
                                bool optimized = false);
   static RawCode* FinalizeCode(const char* name,
                                Assembler* assembler,
                                bool optimized);
+#endif
   static RawCode* LookupCode(uword pc);
   static RawCode* LookupCodeInVmIsolate(uword pc);
   static RawCode* FindCode(uword pc, int64_t timestamp);