Add statistics operations and long calls and jumps to x64 macro assembler.

src/x64/macro-assembler-x64.h

Index: src/x64/macro-assembler-x64.h
===================================================================
--- src/x64/macro-assembler-x64.h	(revision 2138)
+++ src/x64/macro-assembler-x64.h	(working copy)
@@ -141,10 +141,19 @@
   // Store the code object for the given builtin in the target register.
   void GetBuiltinEntry(Register target, Builtins::JavaScript id);
 
+  // ---------------------------------------------------------------------------
+  // Macro instructions
+
   // Expression support
   void Set(Register dst, int64_t x);
   void Set(const Operand& dst, int64_t x);
 
+  // Control Flow
+  void Jump(Address destination, RelocInfo::Mode rmode);
+  void Jump(ExternalReference ext);
+  void Call(Address destination, RelocInfo::Mode rmode);
+  void Call(ExternalReference ext);
+
   // Compare object type for heap object.
   // Incoming register is heap_object and outgoing register is map.
   void CmpObjectType(Register heap_object, InstanceType type, Register map);