[interpreter] Elide OSR polling from fake loops.

src/interpreter/control-flow-builders.cc

Index: src/interpreter/control-flow-builders.cc
diff --git a/src/interpreter/control-flow-builders.cc b/src/interpreter/control-flow-builders.cc
index 1a1d3b45a35d805993bad81cd32478ead9ddf13e..1624712425392f6addf140473ede669b059f6760 100644
--- a/src/interpreter/control-flow-builders.cc
+++ b/src/interpreter/control-flow-builders.cc
@@ -102,11 +102,21 @@ void LoopBuilder::LoopHeader(ZoneVector<BytecodeLabel>* additional_labels) {
   }
 }
 
+void LoopBuilder::JumpToHeader() {
+  // Loop must have closed form, i.e. all loop elements are within the loop,
+  // the loop header precedes the body and next elements in the loop.
+  DCHECK(loop_header_.is_bound());
+  builder()->Jump(&loop_header_);
+}
 
-void LoopBuilder::EndLoop() {
+void LoopBuilder::JumpToHeaderIfTrue() {
   // Loop must have closed form, i.e. all loop elements are within the loop,
   // the loop header precedes the body and next elements in the loop.
   DCHECK(loop_header_.is_bound());
+  builder()->JumpIfTrue(&loop_header_);
+}
+
+void LoopBuilder::EndLoop() {
   builder()->Bind(&loop_end_);
   SetBreakTarget(loop_end_);
 }