[turbofan] Generalize constant propagation.

test/unittests/compiler/simplified-operator-reducer-unittest.cc

Index: test/unittests/compiler/simplified-operator-reducer-unittest.cc
diff --git a/test/unittests/compiler/simplified-operator-reducer-unittest.cc b/test/unittests/compiler/simplified-operator-reducer-unittest.cc
index 066cbe9337e5d216e185944c487ecbbdd585c5cb..666837d1ca025164f11c77dc76231dd8e7d654d3 100644
--- a/test/unittests/compiler/simplified-operator-reducer-unittest.cc
+++ b/test/unittests/compiler/simplified-operator-reducer-unittest.cc
@@ -9,6 +9,10 @@
 #include "src/types.h"
 #include "test/unittests/compiler/graph-unittest.h"
 #include "test/unittests/compiler/node-test-utils.h"
+#include "testing/gmock-support.h"
+
+using testing::IsNaN;
+
 
 namespace v8 {
 namespace internal {
@@ -114,11 +118,6 @@ static const uint32_t kUint32Values[] = {
     0xbeb15c0d, 0xc171c53d, 0xc743dd38, 0xc8e2af50, 0xc98e2df0, 0xd9d1cdf9,
     0xdcc91049, 0xe46f396d, 0xee991950, 0xef64e521, 0xf7aeefc9, 0xffffffff};
 
-
-MATCHER(IsNaN, std::string(negation ? "isn't" : "is") + " NaN") {
-  return std::isnan(arg);
-}
-
 }  // namespace