Remove failing assert in Function::ClearCode.

runtime/vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 2715 matching lines @@
 
   RawArray* ic_data_array() const;
   void ClearICDataArray() const;
 
   // Sets deopt reason in all ICData-s with given deopt_id.
   void SetDeoptReasonForAll(intptr_t deopt_id, ICData::DeoptReasonId reason);
 
   void set_modifier(RawFunction::AsyncModifier value) const;
 
   // 'was_compiled' is true if the function was compiled once in this
-  // VM instantiation. It independent from presence of type feedback
-  // (ic_data_array) and code, whihc may be loaded from a snapshot.
+  // VM instantiation. It is independent from presence of type feedback
+  // (ic_data_array) and code, which may be loaded from a snapshot.
   void set_was_compiled(bool value) const {
     StoreNonPointer(&raw_ptr()->was_compiled_, value ? 1 : 0);
   }
   bool was_compiled() const { return raw_ptr()->was_compiled_ == 1; }
 
   // static: Considered during class-side or top-level resolution rather than
   //         instance-side resolution.
   // const: Valid target of a const constructor call.
   // abstract: Skipped during instance-side resolution.
   // reflectable: Enumerated by mirrors, invocable by mirrors. False for private
@@ skipping 5907 matching lines @@
 
 inline void TypeArguments::SetHash(intptr_t value) const {
   // This is only safe because we create a new Smi, which does not cause
   // heap allocation.
   StoreSmi(&raw_ptr()->hash_, Smi::New(value));
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_