Source position tests for switch and try catch finally

runtime/vm/ast_transformer.cc

 // Copyright (c) 2014, 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/ast_transformer.h"
 
 #include "vm/object_store.h"
 #include "vm/parser.h"
 #include "vm/thread.h"
 
@@ skipping 101 matching lines @@
   //
   //   :await_temp_var_X = <expr>;
   //   AwaitMarker(kNewContinuationState);
   //   :result_param = _awaitHelper(
   //      :await_temp_var_X, :async_then_callback, :async_catch_error_callback);
   //   return;  // (return_type() == kContinuationTarget)
   //
   //   :saved_try_ctx_var = :await_saved_try_ctx_var_y;
   //   :await_temp_var_(X+1) = :result_param;
 
+  const intptr_t token_pos = node->token_pos();
   LocalVariable* async_op = GetVariableInScope(
       preamble_->scope(), Symbols::AsyncOperation());
   LocalVariable* async_then_callback = GetVariableInScope(
       preamble_->scope(), Symbols::AsyncThenCallback());
   LocalVariable* async_catch_error_callback = GetVariableInScope(
       preamble_->scope(), Symbols::AsyncCatchErrorCallback());
   LocalVariable* result_param = GetVariableInScope(
       preamble_->scope(), Symbols::AsyncOperationParam());
   LocalVariable* error_param = GetVariableInScope(
       preamble_->scope(), Symbols::AsyncOperationErrorParam());
   LocalVariable* stack_trace_param = GetVariableInScope(
       preamble_->scope(), Symbols::AsyncOperationStackTraceParam());
 
   AstNode* transformed_expr = Transform(node->expr());
   LocalVariable* await_temp = AddToPreambleNewTempVar(transformed_expr);
 
   AwaitMarkerNode* await_marker =
-      new (Z) AwaitMarkerNode(async_temp_scope_, node->scope());
+      new (Z) AwaitMarkerNode(async_temp_scope_, node->scope(), token_pos);
   preamble_->Add(await_marker);
 
   // :result_param = _awaitHelper(
   //      :await_temp, :async_then_callback, :async_catch_error_callback)
   const Library& async_lib = Library::Handle(Library::AsyncLibrary());
   const Function& async_await_helper = Function::ZoneHandle(
       Z, async_lib.LookupFunctionAllowPrivate(Symbols::AsyncAwaitHelper()));
   ASSERT(!async_await_helper.IsNull());
   ArgumentListNode* async_await_helper_args = new (Z) ArgumentListNode(
       Scanner::kNoSourcePos);
@@ skipping 436 matching lines @@
 
 
 void AwaitTransformer::VisitThrowNode(ThrowNode* node) {
   AstNode* new_exception = Transform(node->exception());
   result_ = new(Z) ThrowNode(node->token_pos(),
                              new_exception,
                              node->stacktrace());
 }
 
 }  // namespace dart