[heap] Black is encoded with 11, grey with 10.

src/arm/macro-assembler-arm.cc

Index: src/arm/macro-assembler-arm.cc
diff --git a/src/arm/macro-assembler-arm.cc b/src/arm/macro-assembler-arm.cc
index 3210fefb76966b09319fc00262df93b52e162a80..5220b05bf846e10587ba0b936782843fdef0f433 100644
--- a/src/arm/macro-assembler-arm.cc
+++ b/src/arm/macro-assembler-arm.cc
@@ -3248,8 +3248,8 @@ void MacroAssembler::JumpIfBlack(Register object,
                                  Register scratch0,
                                  Register scratch1,
                                  Label* on_black) {
-  HasColor(object, scratch0, scratch1, on_black, 1, 0);  // kBlackBitPattern.
-  DCHECK(strcmp(Marking::kBlackBitPattern, "10") == 0);
+  HasColor(object, scratch0, scratch1, on_black, 1, 1);  // kBlackBitPattern.
+  DCHECK(strcmp(Marking::kBlackBitPattern, "11") == 0);
 }
 
 
@@ -3304,8 +3304,8 @@ void MacroAssembler::JumpIfWhite(Register value, Register bitmap_scratch,
 
   // If the value is black or grey we don't need to do anything.
   DCHECK(strcmp(Marking::kWhiteBitPattern, "00") == 0);
-  DCHECK(strcmp(Marking::kBlackBitPattern, "10") == 0);
-  DCHECK(strcmp(Marking::kGreyBitPattern, "11") == 0);
+  DCHECK(strcmp(Marking::kBlackBitPattern, "11") == 0);
+  DCHECK(strcmp(Marking::kGreyBitPattern, "10") == 0);
   DCHECK(strcmp(Marking::kImpossibleBitPattern, "01") == 0);
 
   // Since both black and grey have a 1 in the first position and white does