Fix binary size increase because of class name loading.

Source/wtf/InstanceCounter.cpp

Index: Source/wtf/InstanceCounter.cpp
diff --git a/Source/wtf/InstanceCounter.cpp b/Source/wtf/InstanceCounter.cpp
index f3d0c3a8416fb36f3803dad60e557fada4515ced..dbaee9eb7f2bcad761cb554c0f651d3630bc0e6f 100644
--- a/Source/wtf/InstanceCounter.cpp
+++ b/Source/wtf/InstanceCounter.cpp
@@ -35,6 +35,8 @@
 
 namespace WTF {
 
+#if ENABLE(INSTANCE_COUNTER) || ENABLE(GC_PROFILING)
+
 #if COMPILER(CLANG)
 const size_t extractNameFunctionPrefixLength = sizeof("const char *WTF::extractNameFunction() [T = ") - 1;
 const size_t extractNameFunctionPostfixLength = sizeof("]") - 1;
@@ -63,8 +65,6 @@ String extractTypeNameFromFunctionName(const char* funcName)
 #endif
 }
 
-#if ENABLE(INSTANCE_COUNTER) || ENABLE(GC_PROFILING)
-
 class InstanceCounter {
 public:
     void incrementInstanceCount(const String& instanceName, void* ptr);