Detect simple tail calls

src/compiler/node-properties.cc

Index: src/compiler/node-properties.cc
diff --git a/src/compiler/node-properties.cc b/src/compiler/node-properties.cc
index 8956915a2c5fd8085937d2f8b6e8914f05ed8844..9e665d10e992087229cfca18bcb96bd9ace8bad8 100644
--- a/src/compiler/node-properties.cc
+++ b/src/compiler/node-properties.cc
@@ -119,6 +119,15 @@ bool NodeProperties::IsControlEdge(Edge edge) {
 
 
 // static
+bool NodeProperties::IsExceptionalCall(Node* node) {
+  for (Node* const use : node->uses()) {
+    if (use->opcode() == IrOpcode::kIfException) return true;
+  }
+  return false;
+}
+
+
+// static
 void NodeProperties::ReplaceContextInput(Node* node, Node* context) {
   node->ReplaceInput(FirstContextIndex(node), context);
 }