[Interpreter] Add explicit StackCheck bytecodes on function entry and back branches.

src/interpreter/bytecode-generator.h

Index: src/interpreter/bytecode-generator.h
diff --git a/src/interpreter/bytecode-generator.h b/src/interpreter/bytecode-generator.h
index be4ca82e36409268f9f041bcf9aa755c7517bc71..0bcc9d954d92e5e14290df00e08fdc0d7c685bff 100644
--- a/src/interpreter/bytecode-generator.h
+++ b/src/interpreter/bytecode-generator.h
@@ -13,6 +13,8 @@ namespace v8 {
 namespace internal {
 namespace interpreter {
 
+class LoopBuilder;
+
 class BytecodeGenerator final : public AstVisitor {
  public:
   BytecodeGenerator(Isolate* isolate, Zone* zone);
@@ -94,6 +96,9 @@ class BytecodeGenerator final : public AstVisitor {
                                   Register value_out);
   void VisitForInAssignment(Expression* expr, FeedbackVectorSlot slot);
 
+  // Visit the body of a loop iteration.
+  void VisitIterationBody(IterationStatement* stmt, LoopBuilder* loop_builder);
+
   // Visit a statement and switch scopes, the context is in the accumulator.
   void VisitInScope(Statement* stmt, Scope* scope);