Remove several JSFunction delegator functions.

src/runtime-profiler.cc

Index: src/runtime-profiler.cc
diff --git a/src/runtime-profiler.cc b/src/runtime-profiler.cc
index 6b942d44a6cbca5a2ec53830547bc4d49b022af5..d2edd1b2b7a30494537c4e3c5ceaf61df94a51aa 100644
--- a/src/runtime-profiler.cc
+++ b/src/runtime-profiler.cc
@@ -108,7 +108,7 @@ void RuntimeProfiler::Optimize(JSFunction* function, const char* reason) {
 void RuntimeProfiler::AttemptOnStackReplacement(JSFunction* function,
                                                 int loop_nesting_levels) {
   SharedFunctionInfo* shared = function->shared();
-  if (!FLAG_use_osr || function->IsBuiltin()) {
+  if (!FLAG_use_osr || function->shared()->IsBuiltin()) {
     return;
   }