[heap] Remove Marking::AnyToGrey and change its callers to use simple marking functions.

test/unittests/heap/marking-unittest.cc

Index: test/unittests/heap/marking-unittest.cc
diff --git a/test/unittests/heap/marking-unittest.cc b/test/unittests/heap/marking-unittest.cc
index edb39c87fc08f11cf789e290a17b53e2b11247b4..4f80d384dd789f4dfd7d87010721cad3a66540b0 100644
--- a/test/unittests/heap/marking-unittest.cc
+++ b/test/unittests/heap/marking-unittest.cc
@@ -32,35 +32,6 @@ TEST(Marking, TransitionWhiteBlackWhite) {
   free(bitmap);
 }
 
-TEST(Marking, TransitionAnyToGrey) {
-  Bitmap* bitmap = reinterpret_cast<Bitmap*>(
-      calloc(Bitmap::kSize / kPointerSize, kPointerSize));
-  const int kLocationsSize = 3;
-  int position[kLocationsSize] = {
-      Bitmap::kBitsPerCell - 2, Bitmap::kBitsPerCell - 1, Bitmap::kBitsPerCell};
-  for (int i = 0; i < kLocationsSize; i++) {
-    MarkBit mark_bit = bitmap->MarkBitFromIndex(position[i]);
-    CHECK(Marking::IsWhite(mark_bit));
-    CHECK(!Marking::IsImpossible(mark_bit));
-    Marking::AnyToGrey(mark_bit);
-    CHECK(Marking::IsGrey(mark_bit));
-    CHECK(Marking::IsBlackOrGrey(mark_bit));
-    CHECK(!Marking::IsImpossible(mark_bit));
-    Marking::GreyToBlack(mark_bit);
-    CHECK(Marking::IsBlack(mark_bit));
-    CHECK(Marking::IsBlackOrGrey(mark_bit));
-    CHECK(!Marking::IsImpossible(mark_bit));
-    Marking::AnyToGrey(mark_bit);
-    CHECK(Marking::IsGrey(mark_bit));
-    CHECK(Marking::IsBlackOrGrey(mark_bit));
-    CHECK(!Marking::IsImpossible(mark_bit));
-    Marking::GreyToWhite(mark_bit);
-    CHECK(Marking::IsWhite(mark_bit));
-    CHECK(!Marking::IsImpossible(mark_bit));
-  }
-  free(bitmap);
-}
-
 TEST(Marking, TransitionWhiteGreyBlackGrey) {
   Bitmap* bitmap = reinterpret_cast<Bitmap*>(
       calloc(Bitmap::kSize / kPointerSize, kPointerSize));