Introduce rolp, rorp, rclp, rcrp, shlp, shrp and sarp for x64 port

src/x64/regexp-macro-assembler-x64.cc

Index: src/x64/regexp-macro-assembler-x64.cc
diff --git a/src/x64/regexp-macro-assembler-x64.cc b/src/x64/regexp-macro-assembler-x64.cc
index c819c71cb95c56fbf956cc7b8f29aa212034b6db..ce90f339e4be4e7e3e032f9303eb2bd0e1871787 100644
--- a/src/x64/regexp-macro-assembler-x64.cc
+++ b/src/x64/regexp-macro-assembler-x64.cc
@@ -838,7 +838,7 @@ Handle<HeapObject> RegExpMacroAssemblerX64::GetCode(Handle<String> source) {
         }
         __ addp(rax, rcx);  // Convert to index from start, not end.
         if (mode_ == UC16) {
-          __ sar(rax, Immediate(1));  // Convert byte index to character index.
+          __ sarp(rax, Immediate(1));  // Convert byte index to character index.
         }
         __ movl(Operand(rbx, i * kIntSize), rax);
       }