[test][x64] Reenable some DisasmX64 test lines.

R=clemensh@chromium.org
TEST=cctest/test-disasm-x64

Change-Id: I704537886b80701921eeae918a1f867f42ad305b
Reviewed-on: https://chromium-review.googlesource.com/c/1437289Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59127}

test/cctest/test-disasm-x64.cc

@@ -205,8 +205,7 @@ TEST(DisasmX64) {
   __ incq(Operand(rbx, rcx, times_4, 10000));
   __ pushq(Operand(rbx, rcx, times_4, 10000));
   __ popq(Operand(rbx, rcx, times_4, 10000));
-  // TODO(mstarzinger): The following is protected.
-  // __ jmp(Operand(rbx, rcx, times_4, 10000));
+  __ jmp(Operand(rbx, rcx, times_4, 10000));
 
   __ leaq(rdx, Operand(rbx, rcx, times_4, 10000));
   __ orq(rdx, Immediate(12345));
@@ -291,8 +290,7 @@ TEST(DisasmX64) {
   __ nop();
 
   __ jmp(&L1);
-  // TODO(mstarzinger): The following is protected.
-  // __ jmp(Operand(rbx, rcx, times_4, 10000));
+  __ jmp(Operand(rbx, rcx, times_4, 10000));
   __ jmp(ic, RelocInfo::CODE_TARGET);
   __ nop();