Fix http://dartbug.com/23578:

runtime/vm/dart_api_impl.cc

Index: runtime/vm/dart_api_impl.cc
diff --git a/runtime/vm/dart_api_impl.cc b/runtime/vm/dart_api_impl.cc
index f4295b2574a72cfabe7c5f8eea3fead17e2f860e..bc36704424b32c1b9ab8117fa09ca7ccdb760420 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -1287,12 +1287,21 @@ static char* BuildIsolateName(const char* script_uri,
 DART_EXPORT Dart_Isolate Dart_CreateIsolate(const char* script_uri,
                                             const char* main,
                                             const uint8_t* snapshot,
+                                            Dart_IsolateFlags* flags,
                                             void* callback_data,
                                             char** error) {
   CHECK_NO_ISOLATE(Isolate::Current());
   char* isolate_name = BuildIsolateName(script_uri, main);
   Thread::EnsureInit();
-  Isolate* isolate = Dart::CreateIsolate(isolate_name);
+
+  // Setup default flags in case none were passed.
+  Dart_IsolateFlags api_flags;
+  if (flags == NULL) {
+    Isolate::Flags vm_flags;
+    vm_flags.CopyTo(&api_flags);
+    flags = &api_flags;
+  }
+  Isolate* isolate = Dart::CreateIsolate(isolate_name, *flags);
   free(isolate_name);
   StackZone zone(isolate);
   HANDLESCOPE(isolate);
@@ -1405,6 +1414,7 @@ DART_EXPORT void Dart_ExitIsolate() {
 }
 
 
+// TODO(iposva): Remove this API and instead expose the underlying flags.
 DART_EXPORT Dart_Handle Dart_IsolateSetStrictCompilation(bool value) {
   CHECK_ISOLATE(Isolate::Current());
   Isolate* isolate = Isolate::Current();
@@ -1412,7 +1422,11 @@ DART_EXPORT Dart_Handle Dart_IsolateSetStrictCompilation(bool value) {
     return Api::NewError(
         "%s expects that the isolate has not yet compiled code.", CURRENT_FUNC);
   }
-  Isolate::Current()->set_strict_compilation(value);
+  if (!value) {
+    return Api::NewError(
+        "%s expects that the value is set to true only.", CURRENT_FUNC);
+  }
+  Isolate::Current()->set_strict_compilation();
   return Api::Null();
 }
 
@@ -3999,8 +4013,6 @@ DART_EXPORT Dart_Handle Dart_Invoke(Dart_Handle target,
   // other operations (gc, compilation) are active.
   TIMERSCOPE(isolate, time_dart_execution);
 
-  isolate->set_has_compiled(true);
-
   const String& function_name = Api::UnwrapStringHandle(isolate, name);
   if (function_name.IsNull()) {
     RETURN_TYPE_ERROR(isolate, name, String);