CPUProfiler: Improve line numbers support in profiler.

src/log.cc

Index: src/log.cc
diff --git a/src/log.cc b/src/log.cc
index df4fcdc7aa4db0d258fa73b30f37a2d2e702c4cb..a44add6cb928f8fe59fc6d8ffff6d595318a6055 100644
--- a/src/log.cc
+++ b/src/log.cc
@@ -1659,15 +1659,15 @@ void Logger::LogExistingFunction(Handle<SharedFunctionInfo> shared,
   Handle<String> func_name(shared->DebugName());
   if (shared->script()->IsScript()) {
     Handle<Script> script(Script::cast(shared->script()));
+    int line_num = GetScriptLineNumber(script, shared->start_position()) + 1;
     if (script->name()->IsString()) {
       Handle<String> script_name(String::cast(script->name()));
-      int line_num = GetScriptLineNumber(script, shared->start_position());
       if (line_num > 0) {
         PROFILE(isolate_,
                 CodeCreateEvent(
                     Logger::ToNativeByScript(Logger::LAZY_COMPILE_TAG, *script),
                     *code, *shared, NULL,
-                    *script_name, line_num + 1));
+                    *script_name, line_num));
       } else {
         // Can't distinguish eval and script here, so always use Script.
         PROFILE(isolate_,
@@ -1679,7 +1679,8 @@ void Logger::LogExistingFunction(Handle<SharedFunctionInfo> shared,
       PROFILE(isolate_,
               CodeCreateEvent(
                   Logger::ToNativeByScript(Logger::LAZY_COMPILE_TAG, *script),
-                  *code, *shared, NULL, *func_name));
+                  *code, *shared, NULL,
+                  isolate_->heap()->empty_string(), line_num));
     }
   } else if (shared->IsApiFunction()) {
     // API function.