[turbofan] Merge compiler unit tests into src.

src/compiler/instruction-selector-unittest.h

Index: src/compiler/instruction-selector-unittest.h
diff --git a/test/compiler-unittests/instruction-selector-unittest.h b/src/compiler/instruction-selector-unittest.h
similarity index 96%
rename from test/compiler-unittests/instruction-selector-unittest.h
rename to src/compiler/instruction-selector-unittest.h
index f264eb042b23d6e4be731c4e0310752a1153216f..113e8abc611d362c743fbab67736d1fe78f3e0a7 100644
--- a/test/compiler-unittests/instruction-selector-unittest.h
+++ b/src/compiler/instruction-selector-unittest.h
@@ -2,16 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_COMPILER_UNITTESTS_INSTRUCTION_SELECTOR_UNITTEST_H_
-#define V8_COMPILER_UNITTESTS_INSTRUCTION_SELECTOR_UNITTEST_H_
+#ifndef V8_COMPILER_INSTRUCTION_SELECTOR_UNITTEST_H_
+#define V8_COMPILER_INSTRUCTION_SELECTOR_UNITTEST_H_
 
 #include <deque>
 #include <set>
 
 #include "src/base/utils/random-number-generator.h"
+#include "src/compiler/compiler-unittests.h"
 #include "src/compiler/instruction-selector.h"
 #include "src/compiler/raw-machine-assembler.h"
-#include "test/compiler-unittests/compiler-unittests.h"
 
 namespace v8 {
 namespace internal {
@@ -199,4 +199,4 @@ class InstructionSelectorTestWithParam
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_COMPILER_UNITTESTS_INSTRUCTION_SELECTOR_UNITTEST_H_
+#endif  // V8_COMPILER_INSTRUCTION_SELECTOR_UNITTEST_H_