Fix restoring of contexts in inlined finally code

runtime/vm/flow_graph_builder.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/flow_graph_builder.h"
 
 #include "lib/invocation_mirror.h"
 #include "vm/ast_printer.h"
 #include "vm/bit_vector.h"
 #include "vm/class_finalizer.h"
@@ skipping 4274 matching lines @@
 void EffectGraphVisitor::VisitInlinedFinallyNode(InlinedFinallyNode* node) {
   InlineBailout("EffectGraphVisitor::VisitInlinedFinallyNode (exception)");
   const intptr_t try_index = owner()->try_index();
   if (try_index >= 0) {
     // We are about to generate code for an inlined finally block. Exceptions
     // thrown in this block of code should be treated as though they are
     // thrown not from the current try block but the outer try block if any.
     intptr_t outer_try_index = node->try_index();
     owner()->set_try_index(outer_try_index);
   }
-  BuildRestoreContext(node->context_var());
 

[srdjan, 2015/03/12 22:09:22]

Add a comment, similar to the on in CL, so that no one adds a
BuildRestoreContext accidentally.

   JoinEntryInstr* finally_entry =
       new(I) JoinEntryInstr(owner()->AllocateBlockId(), owner()->try_index());
   EffectGraphVisitor for_finally_block(owner());
   node->finally_block()->Visit(&for_finally_block);
 
   if (try_index >= 0) {
     owner()->set_try_index(try_index);
   }
 
   if (for_finally_block.is_open()) {
@@ skipping 56 matching lines @@
   Report::MessageF(Report::kBailout,
                    Script::Handle(function.script()),
                    function.token_pos(),
                    "FlowGraphBuilder Bailout: %s %s",
                    String::Handle(function.name()).ToCString(),
                    reason);
   UNREACHABLE();
 }
 
 }  // namespace dart