Adjust position recorded for call expressions.

src/parser.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2985 matching lines @@
       case Token::LBRACK: {
         Consume(Token::LBRACK);
         int pos = scanner().location().beg_pos;
         Expression* index = ParseExpression(true, CHECK_OK);
         result = new(zone()) Property(isolate(), result, index, pos);
         Expect(Token::RBRACK, CHECK_OK);
         break;
       }
 
       case Token::LPAREN: {
-        int pos = scanner().location().beg_pos;
+        int pos;
+        if (scanner().current_token() == Token::IDENTIFIER) {
+          // For call of an identifier we want to report position of
+          // the identifier as position of the call in the stack trace.
+          pos = scanner().location().beg_pos;
+        } else {
+          // For other kinds of calls we record position of the parenthesis as
+          // position of the call.  Note that this is extremely important for
+          // expressions of the form function(){...}() for which call position
+          // should not point to the closing brace otherwise it will intersect
+          // with positions recorded for function literal and confuse debugger.
+          pos = scanner().peek_location().beg_pos;
+        }
         ZoneList<Expression*>* args = ParseArguments(CHECK_OK);
 
         // Keep track of eval() calls since they disable all local variable
         // optimizations.
         // The calls that need special treatment are the
         // direct eval calls. These calls are all of the form eval(...), with
         // no explicit receiver.
         // These calls are marked as potentially direct eval calls. Whether
         // they are actually direct calls to eval is determined at run time.
         VariableProxy* callee = result->AsVariableProxy();
@@ skipping 2660 matching lines @@
       ASSERT(info->isolate()->has_pending_exception());
     } else {
       result = parser.ParseProgram(info);
     }
   }
   info->SetFunction(result);
   return (result != NULL);
 }
 
 } }  // namespace v8::internal