[generators] Implement %GeneratorGetSourcePosition.

src/parsing/parser.cc

 // Copyright 2012 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/parsing/parser.h"
 
 #include "src/api.h"
 #include "src/ast/ast.h"
 #include "src/ast/ast-expression-rewriter.h"
 #include "src/ast/ast-expression-visitor.h"
@@ skipping 662 matching lines @@
       factory, parser_->ast_value_factory()->new_target_string(),
       Variable::NORMAL, pos, pos + kNewTargetStringLength);
   proxy->set_is_new_target();
   return proxy;
 }
 
 
 Expression* ParserTraits::FunctionSentExpression(Scope* scope,
                                                  AstNodeFactory* factory,
                                                  int pos) {
-  // We desugar function.sent into %_GeneratorGetInput(generator).
+  // We desugar function.sent into %_GeneratorGetInputOrDebugPos(generator).
   Zone* zone = parser_->zone();
   ZoneList<Expression*>* args = new (zone) ZoneList<Expression*>(1, zone);
   VariableProxy* generator = factory->NewVariableProxy(
       parser_->function_state_->generator_object_variable());
   args->Add(generator, zone);
-  return factory->NewCallRuntime(Runtime::kInlineGeneratorGetInput, args, pos);
+  return factory->NewCallRuntime(Runtime::kInlineGeneratorGetInputOrDebugPos,
+                                 args, pos);
 }
 
 
 Literal* ParserTraits::ExpressionFromLiteral(Token::Value token, int pos,
                                              Scanner* scanner,
                                              AstNodeFactory* factory) {
   switch (token) {
     case Token::NULL_LITERAL:
       return factory->NewNullLiteral(pos);
     case Token::TRUE_LITERAL:
@@ skipping 6278 matching lines @@
                         try_block, target);
     final_loop = target;
   }
 
   return final_loop;
 }
 
 
 }  // namespace internal
 }  // namespace v8