[Interpreter] Enable runtime profiler support for Ignition.

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index 6d0f65ee29f95afc4930db09c1378a592ceedaed..d881b6fea35a9973dd1e15c2affac46bfe920d3e 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -49,6 +49,13 @@ void Interpreter::IterateDispatchTable(ObjectVisitor* v) {
                    &dispatch_table_[0] + kDispatchTableSize);
 }
 
+// static
+int Interpreter::InterruptBudget() {
+  // TODO(ignition): Tune code size multiplier.
+  const int kCodeSizeMultiplier = 32;
+  return FLAG_interrupt_budget / kCodeSizeMultiplier;
+}
+
 bool Interpreter::MakeBytecode(CompilationInfo* info) {
   if (FLAG_print_bytecode || FLAG_print_source || FLAG_print_ast) {
     OFStream os(stdout);