Adds debugger patching to arm64.

runtime/vm/benchmark_test.cc

Index: runtime/vm/benchmark_test.cc
===================================================================
--- runtime/vm/benchmark_test.cc	(revision 35975)
+++ runtime/vm/benchmark_test.cc	(working copy)
@@ -31,8 +31,6 @@
   }
 }
 
-// TODO(zra): Remove when tests are ready to enable.
-#if !defined(TARGET_ARCH_ARM64)
 
 //
 // Measure compile of all functions in dart core lib classes.
@@ -54,9 +52,7 @@
   benchmark->set_score(elapsed_time);
 }
 
-#endif
 
-
 //
 // Measure creation of core isolate from a snapshot.
 //
@@ -91,9 +87,6 @@
 }
 
 
-// TODO(zra): Remove when tests are ready to enable.
-#if !defined(TARGET_ARCH_ARM64)
-
 //
 // Measure invocation of Dart API functions.
 //
@@ -197,9 +190,7 @@
   benchmark->set_score(elapsed_time);
 }
 
-#endif
 
-
 //
 // Measure time accessing internal and external strings.
 //
@@ -241,9 +232,6 @@
 }
 
 
-// TODO(zra): Remove when tests are ready to enable.
-#if !defined(TARGET_ARCH_ARM64)
-
 //
 // Measure compile of all dart2js(compiler) functions.
 //
@@ -325,9 +313,7 @@
   free(script);
 }
 
-#endif
 
-
 //
 // Measure frame lookup during stack traversal.
 //