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

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index 19d750cf4e9f8cee95a3bca1d0b15451c38c9465..5222bc9c718164d84857c6fa613fc5de4e7e52fe 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -2900,10 +2900,9 @@ void MacroAssembler::JumpIfBlack(Register object,
                                  Register scratch1,
                                  Label* on_black,
                                  Label::Distance on_black_near) {
-  HasColor(object, scratch0, scratch1,
-           on_black, on_black_near,
-           1, 0);  // kBlackBitPattern.
-  DCHECK(strcmp(Marking::kBlackBitPattern, "10") == 0);
+  HasColor(object, scratch0, scratch1, on_black, on_black_near, 1,
+           1);  // kBlackBitPattern.
+  DCHECK(strcmp(Marking::kBlackBitPattern, "11") == 0);
 }
 
 
@@ -2965,8 +2964,8 @@ 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