Improve rendering of callsite with non-function target.

src/parsing/preparser.h

 // 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.
 
 #ifndef V8_PARSING_PREPARSER_H
 #define V8_PARSING_PREPARSER_H
 
 #include "src/ast/scopes.h"
 #include "src/bailout-reason.h"
 #include "src/hashmap.h"
@@ skipping 1627 matching lines @@
       PreParserIdentifier name, int start_position, int end_position,
       Scope* scope, PreParserFactory* factory) {
     return PreParserExpression::FromIdentifier(name);
   }
 
   PreParserExpression ExpressionFromString(int pos,
                                            Scanner* scanner,
                                            PreParserFactory* factory = NULL);
 
   PreParserExpression GetIterator(PreParserExpression iterable,
-                                  PreParserFactory* factory) {
+                                  PreParserFactory* factory, int pos) {
     return PreParserExpression::Default();
   }
 
   static PreParserExpressionList NewExpressionList(int size, Zone* zone) {
     return PreParserExpressionList();
   }
 
   static PreParserStatementList NewStatementList(int size, Zone* zone) {
     return PreParserStatementList();
   }
@@ skipping 1454 matching lines @@
           break;
         DCHECK_EQ(Yield::kDelegating, kind);
         // Delegating yields require an RHS; fall through.
       default:
         expression = ParseAssignmentExpression(false, classifier, CHECK_OK);
         break;
     }
   }
   if (kind == Yield::kDelegating) {
     // var iterator = subject[Symbol.iterator]();
-    expression = this->GetIterator(expression, factory());
+    // Hackily disambiguate o from o.next and o [Symbol.iterator]().
+    // TODO(verwaest): Come up with a better solution.
+    expression = this->GetIterator(expression, factory(), pos + 1);
   }
+  // Hackily disambiguate o from o.next and o [Symbol.iterator]().
+  // TODO(verwaest): Come up with a better solution.
   typename Traits::Type::YieldExpression yield =
       factory()->NewYield(generator_object, expression, kind, pos);
   return yield;
 }
 
 
 // Precedence = 3
 template <class Traits>
 typename ParserBase<Traits>::ExpressionT
 ParserBase<Traits>::ParseConditionalExpression(bool accept_IN,
@@ skipping 1120 matching lines @@
       return;
     }
     has_seen_constructor_ = true;
     return;
   }
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PREPARSER_H