Remove failing assert in Function::ClearCode.

runtime/vm/object.h

Index: runtime/vm/object.h
diff --git a/runtime/vm/object.h b/runtime/vm/object.h
index c3d39af7ec4ccca3d5e1de1c4b6c3df2fd0c2fab..c609f44b4b18ea0c1c8f22bbdebe696547aa611d 100644
--- a/runtime/vm/object.h
+++ b/runtime/vm/object.h
@@ -2733,8 +2733,8 @@ class Function : public Object {
   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);
   }