Attempt to reduce performance penalty for logging and profiling

src/compiler.cc

Index: src/compiler.cc
===================================================================
--- src/compiler.cc	(revision 2260)
+++ src/compiler.cc	(working copy)
@@ -175,7 +175,7 @@
 #if defined ENABLE_LOGGING_AND_PROFILING || defined ENABLE_OPROFILE_AGENT
   // Log the code generation for the script. Check explicit whether logging is
   // to avoid allocating when not required.
-  if (Logger::IsEnabled() || OProfileAgent::is_enabled()) {
+  if (Logger::is_logging() || OProfileAgent::is_enabled()) {
     if (script->name()->IsString()) {
       SmartPointer<char> data =
           String::cast(script->name())->ToCString(DISALLOW_NULLS);
@@ -373,7 +373,7 @@
   // Log the code generation. If source information is available include script
   // name and line number. Check explicit whether logging is enabled as finding
   // the line number is not for free.
-  if (Logger::IsEnabled() || OProfileAgent::is_enabled()) {
+  if (Logger::is_logging() || OProfileAgent::is_enabled()) {
     Handle<String> func_name(name->length() > 0 ?
                              *name : shared->inferred_name());
     if (script->name()->IsString()) {