[arm] [arm64] Add optional operators Float32Neg and Float64Neg.

test/unittests/compiler/machine-operator-unittest.cc

Index: test/unittests/compiler/machine-operator-unittest.cc
diff --git a/test/unittests/compiler/machine-operator-unittest.cc b/test/unittests/compiler/machine-operator-unittest.cc
index 59eb484dabfd4f5fa4d8852beea373824a33623e..0235d654c3819f3672f7aa5e95687b6a41f40502 100644
--- a/test/unittests/compiler/machine-operator-unittest.cc
+++ b/test/unittests/compiler/machine-operator-unittest.cc
@@ -327,6 +327,8 @@ const OptionalOperatorEntry kOptionalOperators[] = {
     OPTIONAL_ENTRY(Float64RoundDown, 1, 0, 1),      // --
     OPTIONAL_ENTRY(Float64RoundTruncate, 1, 0, 1),  // --
     OPTIONAL_ENTRY(Float64RoundTiesAway, 1, 0, 1),  // --
+    OPTIONAL_ENTRY(Float32Neg, 1, 0, 1),            // --
+    OPTIONAL_ENTRY(Float64Neg, 1, 0, 1),            // --
 #undef OPTIONAL_ENTRY
 };
 }  // namespace