Expose set_source service command for functions

runtime/vm/object.cc

 // 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.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 2107 matching lines @@
     // Transition to using hash table.
     SetFunctions(new_arr);
   } else if (new_len > kFunctionLookupHashTreshold) {
     ClassFunctionsSet set(raw_ptr()->functions_hash_table_);
     set.Insert(function);
     StorePointer(&raw_ptr()->functions_hash_table_, set.Release().raw());
   }
 }
 
 
+void Class::RemoveFunction(const Function& function) const {
+  const Array& arr = Array::Handle(functions());
+  StorePointer(&raw_ptr()->functions_, Object::empty_array().raw());
+  Function& entry = Function::Handle();
+  for (intptr_t i = 0; i < arr.Length(); i++) {
+    entry ^= arr.At(i);
+    if (function.raw() != entry.raw()) {
+      AddFunction(entry);
+    }
+  }
+}
+
+
 intptr_t Class::FindFunctionIndex(const Function& needle) const {
   Isolate* isolate = Isolate::Current();
   if (EnsureIsFinalized(isolate) != Error::null()) {
     return -1;
   }
   REUSABLE_ARRAY_HANDLESCOPE(isolate);
   REUSABLE_FUNCTION_HANDLESCOPE(isolate);
   Array& funcs = isolate->ArrayHandle();
   Function& function = isolate->FunctionHandle();
   funcs ^= functions();
@@ skipping 18339 matching lines @@
   return tag_label.ToCString();
 }
 
 
 void UserTag::PrintJSONImpl(JSONStream* stream, bool ref) const {
   Instance::PrintJSONImpl(stream, ref);
 }
 
 
 }  // namespace dart