[kernel] Fix getter, run service tests in debug mode

runtime/vm/kernel_reader.cc

Index: runtime/vm/kernel_reader.cc
diff --git a/runtime/vm/kernel_reader.cc b/runtime/vm/kernel_reader.cc
index 558ecd11670edf95f35f76565838aaf9c3b12bd0..04526bfa3ec5731d301109055388f0c07341a409 100644
--- a/runtime/vm/kernel_reader.cc
+++ b/runtime/vm/kernel_reader.cc
@@ -562,6 +562,10 @@ Script& KernelReader::ScriptAt(intptr_t source_uri_index, String* import_uri) {
 void KernelReader::GenerateFieldAccessors(const dart::Class& klass,
                                           const dart::Field& field,
                                           Field* kernel_field) {
+  if (kernel_field->IsStatic() && kernel_field->initializer() == NULL) {
+    field.SetStaticValue(Instance::Handle(Z), true);

[Kevin Millikin (Google), 2017/03/22 14:11:26]

Comment:

// Static fields without an initializer are implicitly initialized to null.  We
do not need a getter.

+    return;
+  }
   if (kernel_field->initializer() != NULL) {
     SimpleExpressionConverter converter(H.thread());
     const bool has_simple_initializer =