[turbofan] Fix cycles introduced by pushing ToNumbers into phis.

src/compiler/js-generic-lowering.cc

Index: src/compiler/js-generic-lowering.cc
diff --git a/src/compiler/js-generic-lowering.cc b/src/compiler/js-generic-lowering.cc
index 48864423146007ec632915d4ac1ad0658ca80c93..3275256a2811b24743fb89de19a1889aeba470b5 100644
--- a/src/compiler/js-generic-lowering.cc
+++ b/src/compiler/js-generic-lowering.cc
@@ -232,6 +232,12 @@ void JSGenericLowering::LowerJSToBoolean(Node* node) {
 
 void JSGenericLowering::LowerJSToNumber(Node* node) {
   Callable callable = CodeFactory::ToNumber(isolate());
+  // TODO(mstarzinger): Embedding the context this way prevents sharing of code
+  // across native contexts.
+  if (!info_context_constant_.is_set()) {
+    info_context_constant_.set(jsgraph()->HeapConstant(info()->context()));
+  }
+  node->ReplaceInput(1, info_context_constant_.get());
   ReplaceWithStubCall(node, callable, FlagsForNode(node));
 }