Clarify the order of frame summaries and rename getters

src/objects.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <memory>
 #include <sstream>
@@ skipping 12989 matching lines @@
 
 void Script::SetEvalOrigin(Handle<Script> script,
                            Handle<SharedFunctionInfo> outer_info,
                            int eval_position) {
   if (eval_position == kNoSourcePosition) {
     // If the position is missing, attempt to get the code offset from the
     // current activation.  Do not translate the code offset into source
     // position, but store it as negative value for lazy translation.
     StackTraceFrameIterator it(script->GetIsolate());
     if (!it.done() && it.is_javascript()) {
-      FrameSummary summary = FrameSummary::GetFirst(it.javascript_frame());
+      FrameSummary summary = FrameSummary::GetTop(it.javascript_frame());
       script->set_eval_from_shared(summary.AsJavaScript().function()->shared());
       script->set_eval_from_position(-summary.code_offset());
       return;
     }
     eval_position = 0;
   }
   script->set_eval_from_shared(*outer_info);
   script->set_eval_from_position(eval_position);
 }
 
@@ skipping 6895 matching lines @@
       // depend on this.
       return DICTIONARY_ELEMENTS;
     }
     DCHECK_LE(kind, LAST_ELEMENTS_KIND);
     return kind;
   }
 }
 
 }  // namespace internal
 }  // namespace v8