Fix the handling of line offset when getting the source line from a ScriptMirror

test/cctest/test-debug.cc

 // Copyright 2007-2008 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 3702 matching lines @@
                                       "  CheckSourceLine(1)\n"
                                       "  CheckSourceLine(2)\n"
                                       "  CheckSourceLine(3)\n"
                                       "}; f()"))->Run();
 
   // Test that a parameter can be passed to a function called in the debugger.
   v8::Script::Compile(v8::String::New("CheckDataParameter()"))->Run();
 
   // Test that a function with closure can be run in the debugger.
   v8::Script::Compile(v8::String::New("CheckClosure()"))->Run();
+
+
+  // Test that the source line is correct when there is a line offset.
+  v8::ScriptOrigin origin(v8::String::New("test"),
+                          v8::Integer::New(7));
+  v8::Script::Compile(v8::String::New("CheckSourceLine(7)"), &origin)->Run();
+  v8::Script::Compile(v8::String::New("function f() {\n"
+                                      "  CheckSourceLine(8)\n"
+                                      "  CheckSourceLine(9)\n"
+                                      "  CheckSourceLine(10)\n"
+                                      "}; f()"), &origin)->Run();
 }
 
 
 // Test that clearing the debug event listener actually clears all break points
 // and related information.
 TEST(DebuggerUnload) {
   v8::HandleScope scope;
   DebugLocalContext env;
 
   // Check debugger is unloaded before it is used.
@@ skipping 75 matching lines @@
 
   // Fill a host dispatch and a continue command on the command queue before
   // generating a debug break.
   v8::Debug::SendHostDispatch(NULL);
   v8::Debug::SendCommand(buffer, AsciiToUtf16(command_continue, buffer));
   CompileRun("debugger");
 
   // The host dispatch callback should be called.
   CHECK_EQ(1, host_dispatch_hit_count);
 }