Kernel debugging; service tests

runtime/vm/kernel.h

Index: runtime/vm/kernel.h
diff --git a/runtime/vm/kernel.h b/runtime/vm/kernel.h
index 29f7c7d5d60734673c16c349b907f3cc69897db4..7bc2a48fe55c8cc6d1817a1693877e5232a923ac 100644
--- a/runtime/vm/kernel.h
+++ b/runtime/vm/kernel.h
@@ -2470,10 +2470,13 @@ class VariableDeclaration : public Statement {
   DartType* type() { return type_; }
   InferredValue* inferred_value() { return inferred_value_; }
   Expression* initializer() { return initializer_; }
+  TokenPosition equals_position() { return equals_position_; }
   TokenPosition end_position() { return end_position_; }
 
  private:
-  VariableDeclaration() : end_position_(TokenPosition::kNoSource) {}
+  VariableDeclaration()
+      : equals_position_(TokenPosition::kNoSourcePos),
+        end_position_(TokenPosition::kNoSource) {}
 
   template <typename T>
   friend class List;
@@ -2483,6 +2486,7 @@ class VariableDeclaration : public Statement {
   Child<DartType> type_;
   Child<InferredValue> inferred_value_;
   Child<Expression> initializer_;
+  TokenPosition equals_position_;
   TokenPosition end_position_;
 
   DISALLOW_COPY_AND_ASSIGN(VariableDeclaration);