Add support for converted closures with explicit contexts to VM

runtime/vm/kernel_to_il.h

Index: runtime/vm/kernel_to_il.h
diff --git a/runtime/vm/kernel_to_il.h b/runtime/vm/kernel_to_il.h
index ae0db180c64fcf424319616ce136a4bf86aee3d3..abdeb2d58d9c5d9b63d16018d1c9e74d53bf4426 100644
--- a/runtime/vm/kernel_to_il.h
+++ b/runtime/vm/kernel_to_il.h
@@ -451,6 +451,8 @@ class DartTypeTranslator : public DartTypeVisitor {
 
   virtual void VisitVoidType(VoidType* node);
 
+  virtual void VisitVectorType(VectorType* node);
+
   virtual void VisitBottomType(BottomType* node);
 
   // Will return `TypeArguments::null()` in case any of the arguments are
@@ -830,6 +832,11 @@ class FlowGraphBuilder : public ExpressionVisitor, public StatementVisitor {
   virtual void VisitLet(Let* node);
   virtual void VisitThrow(Throw* node);
   virtual void VisitRethrow(Rethrow* node);
+  virtual void VisitVectorCreation(VectorCreation* node);
+  virtual void VisitVectorGet(VectorGet* node);
+  virtual void VisitVectorSet(VectorSet* node);
+  virtual void VisitVectorCopy(VectorCopy* node);
+  virtual void VisitClosureCreation(ClosureCreation* node);
 
   virtual void VisitInvalidStatement(InvalidStatement* node);
   virtual void VisitEmptyStatement(EmptyStatement* node);
@@ -861,6 +868,8 @@ class FlowGraphBuilder : public ExpressionVisitor, public StatementVisitor {
   FlowGraph* BuildGraphOfMethodExtractor(const Function& method);
   FlowGraph* BuildGraphOfImplicitClosureFunction(FunctionNode* kernel_function,
                                                  const Function& function);
+  FlowGraph* BuildGraphOfConvertedClosureFunction(FunctionNode* kernel_function,
+                                                  const Function& function);
   FlowGraph* BuildGraphOfNoSuchMethodDispatcher(const Function& function);
   FlowGraph* BuildGraphOfInvokeFieldDispatcher(const Function& function);