PPC: Fix "Remove inlined marking part."

src/ppc/macro-assembler-ppc.h

Index: src/ppc/macro-assembler-ppc.h
diff --git a/src/ppc/macro-assembler-ppc.h b/src/ppc/macro-assembler-ppc.h
index 33e59956ae5958d1b71da0f3682d76a1f47a2335..23519b7dc7d727753d38e60501f78be5941b5605 100644
--- a/src/ppc/macro-assembler-ppc.h
+++ b/src/ppc/macro-assembler-ppc.h
@@ -212,6 +212,9 @@ class MacroAssembler : public Assembler {
   void HasColor(Register object, Register scratch0, Register scratch1,
                 Label* has_color, int first_bit, int second_bit);
 
+  void JumpIfBlack(Register object, Register scratch0, Register scratch1,
+                   Label* on_black);
+
   // Checks the color of an object.  If the object is white we jump to the
   // incremental marker.
   void JumpIfWhite(Register value, Register scratch1, Register scratch2,