[turbofan] Implemented the optional Float32RoundUp operator.

src/compiler/typer.cc

Index: src/compiler/typer.cc
diff --git a/src/compiler/typer.cc b/src/compiler/typer.cc
index 4404d94e152a5188243f149e30ba0e232fb40266..cb9073afb531dc59e1bbcc11019e36b3ed2de1ee 100644
--- a/src/compiler/typer.cc
+++ b/src/compiler/typer.cc
@@ -2277,6 +2277,12 @@ Type* Typer::Visitor::TypeFloat64RoundDown(Node* node) {
 }
 
 
+Type* Typer::Visitor::TypeFloat32RoundUp(Node* node) {
+  // TODO(sigurds): We could have a tighter bound here.
+  return Type::Number();
+}
+
+
 Type* Typer::Visitor::TypeFloat64RoundUp(Node* node) {
   // TODO(sigurds): We could have a tighter bound here.
   return Type::Number();