A64: Synchronize with r17635.

src/a64/assembler-a64.h

Index: src/a64/assembler-a64.h
diff --git a/src/a64/assembler-a64.h b/src/a64/assembler-a64.h
index 2739f6a2d5478f349264e29c0d20a2a86cbc99c4..1c684081eec2484c7fb503debf645c173c393343 100644
--- a/src/a64/assembler-a64.h
+++ b/src/a64/assembler-a64.h
@@ -111,10 +111,10 @@ class CPURegister {
   bool IsRegister() const;
   bool IsFPRegister() const;
 
-  const Register& X();
-  const Register& W();
-  const FPRegister& D();
-  const FPRegister& S();
+  const Register& X() const;
+  const Register& W() const;
+  const FPRegister& D() const;
+  const FPRegister& S() const;
 
   bool IsSameSizeAndType(const CPURegister& other) const;
 
@@ -713,10 +713,6 @@ class Assembler : public AssemblerBase {
   // the branch/call instruction at pc.
   inline static Address target_pointer_address_at(Address pc);
 
-  // Read/modify the pointer in the branch/call instruction at pc.
-  inline static Address target_pointer_at(Address pc);
-  inline static void set_target_pointer_at(Address pc, Address target);
-
   // Read/Modify the code target address in the branch/call instruction at pc.
   inline static Address target_address_at(Address pc);
   inline static void set_target_address_at(Address pc, Address target);