Make the values of Platform.executable and Platform.script available to all isolates

runtime/bin/platform.cc

Index: runtime/bin/platform.cc
diff --git a/runtime/bin/platform.cc b/runtime/bin/platform.cc
index 055d3440da85c0ee42261c5f0402d58aece80671..4d1bbedad4927312963fec3aaada269591a2dcb6 100644
--- a/runtime/bin/platform.cc
+++ b/runtime/bin/platform.cc
@@ -12,6 +12,8 @@
 namespace dart {
 namespace bin {
 
+const char* Platform::executable_name_ = NULL;
+
 void FUNCTION_NAME(Platform_NumberOfProcessors)(Dart_NativeArguments args) {
   Dart_SetReturnValue(args, Dart_NewInteger(Platform::NumberOfProcessors()));
 }
@@ -38,6 +40,12 @@ void FUNCTION_NAME(Platform_LocalHostname)(Dart_NativeArguments args) {
 }
 
 
+void FUNCTION_NAME(Platform_ExecutableName)(Dart_NativeArguments args) {
+  ASSERT(Platform::GetExecutableName() != NULL);
+  Dart_SetReturnValue(
+      args, Dart_NewStringFromCString(Platform::GetExecutableName()));
+}
+
 void FUNCTION_NAME(Platform_Environment)(Dart_NativeArguments args) {
   intptr_t count = 0;
   char** env = Platform::Environment(&count);