Make sure that the body of the function created by calling Function is...

src/compiler.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 184 matching lines @@
     // Get rid of the pre-parsing data (if necessary).
     if (input_pre_data == NULL && pre_data != NULL) {
       delete pre_data;
     }
   }
 
   return result;
 }
 
 
-Handle<JSFunction> Compiler::CompileEval(bool is_global,
-                                         Handle<String> source) {
+Handle<JSFunction> Compiler::CompileEval(Handle<String> source,
+                                         int line_offset,
+                                         bool is_global) {
   Counters::total_eval_size.Increment(source->length());
   Counters::total_compile_size.Increment(source->length());
 
   // The VM is in the COMPILER state until exiting this function.
   VMState state(COMPILER);
   CompilationCache::Entry entry = is_global
       ? CompilationCache::EVAL_GLOBAL
       : CompilationCache::EVAL_CONTEXTUAL;
 
   // Do a lookup in the compilation cache; if the entry is not there,
   // invoke the compiler and add the result to the cache.
   Handle<JSFunction> result = CompilationCache::LookupEval(source, entry);
   if (result.is_null()) {
     // Create a script object describing the script to be compiled.
     Handle<Script> script = Factory::NewScript(source);
+    script->set_line_offset(Smi::FromInt(line_offset));
     result = MakeFunction(is_global, true, script, NULL, NULL);
     if (!result.is_null()) {
       CompilationCache::Associate(source, entry, result);
     }
   }
   return result;
 }
 
 
 bool Compiler::CompileLazy(Handle<SharedFunctionInfo> shared) {
@@ skipping 51 matching lines @@
   // Set the expected number of properties for instances.
   SetExpectedNofPropertiesFromEstimate(shared, lit->expected_property_count());
 
   // Check the function has compiled code.
   ASSERT(shared->is_compiled());
   return true;
 }
 
 
 } }  // namespace v8::internal