[turbofan] Fix incorrect minus zero handling in the unit tests.

test/unittests/compiler/js-builtin-reducer-unittest.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/js-builtin-reducer.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/typer.h"
 #include "test/unittests/compiler/graph-unittest.h"
 #include "test/unittests/compiler/node-test-utils.h"
 #include "testing/gmock-support.h"
 
+using testing::BitEq;
 using testing::Capture;
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 class JSBuiltinReducerTest : public TypedGraphTest {
  public:
   JSBuiltinReducerTest() : javascript_(zone()) {}
 
@@ skipping 53 matching lines @@
         graph()->NewNode(javascript()->CallFunction(3, NO_CALL_FUNCTION_FLAGS),
                          fun, UndefinedConstant(), p0);
     Reduction r = Reduce(call);
 
     if (t0->Is(Type::Unsigned32())) {
       ASSERT_TRUE(r.Changed());
       EXPECT_THAT(r.replacement(), p0);
     } else {
       Capture<Node*> branch;
       ASSERT_TRUE(r.Changed());
-      EXPECT_THAT(r.replacement(),
-                  IsSelect(kMachNone, IsNumberLessThan(IsNumberConstant(0), p0),
-                           p0, IsNumberSubtract(IsNumberConstant(0), p0)));
+      EXPECT_THAT(
+          r.replacement(),
+          IsSelect(kMachNone,
+                   IsNumberLessThan(IsNumberConstant(BitEq(0.0)), p0), p0,
+                   IsNumberSubtract(IsNumberConstant(BitEq(0.0)), p0)));
     }
   }
 }
 
 
 // -----------------------------------------------------------------------------
 // Math.sqrt
 
 
 TEST_F(JSBuiltinReducerTest, MathSqrt) {
@@ skipping 192 matching lines @@
         graph()->NewNode(javascript()->CallFunction(3, NO_CALL_FUNCTION_FLAGS),
                          fun, UndefinedConstant(), p0);
     Reduction r = Reduce(call, MachineOperatorBuilder::Flag::kNoFlags);
 
     ASSERT_FALSE(r.Changed());
   }
 }
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8