Collect samples during isolate startup

runtime/vm/dart.cc

Index: runtime/vm/dart.cc
diff --git a/runtime/vm/dart.cc b/runtime/vm/dart.cc
index 0d6cc90263d3ffbdf5d8d13004b6bbbb174dee2e..5f88fbcd27b0c152ef2c3448efcc751e0938647f 100644
--- a/runtime/vm/dart.cc
+++ b/runtime/vm/dart.cc
@@ -217,6 +217,9 @@ RawError* Dart::InitializeIsolate(const uint8_t* snapshot_buffer, void* data) {
   ObjectIdRing::Init(isolate);
   ObjectStore::Init(isolate);
 
+  // Setup for profiling.
+  Profiler::InitProfilingForIsolate(isolate);
+
   if (snapshot_buffer == NULL) {
     const Error& error = Error::Handle(Object::Init(isolate));
     if (!error.IsNull()) {
@@ -259,8 +262,6 @@ RawError* Dart::InitializeIsolate(const uint8_t* snapshot_buffer, void* data) {
     isolate->class_table()->Print();
   }
 
-  // Setup for profiling.
-  Profiler::InitProfilingForIsolate(isolate);
 
   Service::SendIsolateStartupMessage();
   // Create tag table.