[turbofan] Ensure that NTLs are always properly connected to the end.

src/compiler/typer.cc

Index: src/compiler/typer.cc
diff --git a/src/compiler/typer.cc b/src/compiler/typer.cc
index c8c6aba87cb7b328b40f6211eaa01b01ad3208d3..0267822caf7d5399d96076a93589494a31350a1b 100644
--- a/src/compiler/typer.cc
+++ b/src/compiler/typer.cc
@@ -589,6 +589,11 @@ Bounds Typer::Visitor::TypeStart(Node* node) {
 // Common operators.
 
 
+Bounds Typer::Visitor::TypeAlways(Node* node) {
+  return Bounds(Type::None(zone()), Type::Boolean(zone()));
+}
+
+
 Bounds Typer::Visitor::TypeParameter(Node* node) {
   return Bounds::Unbounded(zone());
 }
@@ -670,6 +675,12 @@ Bounds Typer::Visitor::TypeEffectPhi(Node* node) {
 }
 
 
+Bounds Typer::Visitor::TypeEffectSet(Node* node) {
+  UNREACHABLE();
+  return Bounds();
+}
+
+
 Bounds Typer::Visitor::TypeValueEffect(Node* node) {
   UNREACHABLE();
   return Bounds();