[Interpreter] Basic flow control.

src/interpreter/interpreter.h

Index: src/interpreter/interpreter.h
diff --git a/src/interpreter/interpreter.h b/src/interpreter/interpreter.h
index 1e4ca5cdb80b1ef5e173dea1165d8a3c4741f8c3..c32b6831d0aa770ba6e86ee7b9332e2390b43160 100644
--- a/src/interpreter/interpreter.h
+++ b/src/interpreter/interpreter.h
@@ -12,6 +12,7 @@
 #include "src/builtins.h"
 #include "src/interpreter/bytecodes.h"
 #include "src/runtime/runtime.h"
+#include "src/token.h"
 
 namespace v8 {
 namespace internal {
@@ -53,6 +54,11 @@ class Interpreter {
   void DoBinaryOp(Runtime::FunctionId function_id,
                   compiler::InterpreterAssembler* assembler);
 
+  // Generates code to perform the comparison operation associated with
+  // |compare_op|.
+  void DoCompareOp(Token::Value compare_op,
+                   compiler::InterpreterAssembler* assembler);
+
   // Generates code to perform a property load via |ic|.
   void DoPropertyLoadIC(Callable ic, compiler::InterpreterAssembler* assembler);