VM: [Kernel] Fix bootstraping when Kernel isolate is used.

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 9a4f823b171ea40d4637d9068fbaa340bcc807c3..11883929c759331125c43c515ac967641ba6cbb6 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -6015,6 +6015,7 @@ DART_EXPORT Dart_Port Dart_ServiceWaitForKernelPort() {
 #endif
 }
 
+
 DART_EXPORT Dart_Port Dart_KernelPort() {

[hausner, 2017/01/24 00:50:55]

ditto.

[Vyacheslav Egorov (Google), 2017/01/30 19:34:13]

Acknowledged.

 #ifdef DART_PRECOMPILED_RUNTIME
   return false;
@@ -6024,6 +6025,15 @@ DART_EXPORT Dart_Port Dart_KernelPort() {
 }
 
 
+DART_EXPORT Dart_KernelCompilationResult
+Dart_CompileToKernel(const char* script_uri) {
+#ifdef DART_PRECOMPILED_RUNTIME
+  return false;

[kustermann, 2017/01/30 12:14:25]

The return type is Dart_KernelCompilationResult which is a struct:

+typedef struct {
+  Dart_KernelCompilationStatus status;
+  char* error;
+
+  uint8_t* kernel;
+  intptr_t kernel_size;
+} Dart_KernelCompilationResult;
+

How does this even compile?

[Vyacheslav Egorov (Google), 2017/01/30 19:34:13]

Done.

+#else
+  return KernelIsolate::CompileToKernel(script_uri);
+#endif
+}
+
 // --- Service support ---
 
 DART_EXPORT bool Dart_IsServiceIsolate(Dart_Isolate isolate) {