[turbofan] Merge compiler unit tests into src.

src/compiler/simplified-operator-reducer-unittest.cc

Index: src/compiler/simplified-operator-reducer-unittest.cc
diff --git a/test/compiler-unittests/simplified-operator-reducer-unittest.cc b/src/compiler/simplified-operator-reducer-unittest.cc
similarity index 99%
rename from test/compiler-unittests/simplified-operator-reducer-unittest.cc
rename to src/compiler/simplified-operator-reducer-unittest.cc
index 8902484c8cb05470e8c6ee3ef89cb231b21e98a8..86e72662b5b85937cfa52d219ea978ff8804d403 100644
--- a/test/compiler-unittests/simplified-operator-reducer-unittest.cc
+++ b/src/compiler/simplified-operator-reducer-unittest.cc
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "src/compiler/graph-unittest.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/compiler/simplified-operator-reducer.h"
 #include "src/compiler/typer.h"
 #include "src/conversions.h"
-#include "test/compiler-unittests/graph-unittest.h"
 
 namespace v8 {
 namespace internal {