Enables many language tests for arm64.

runtime/vm/flow_graph_compiler_x64.cc

Index: runtime/vm/flow_graph_compiler_x64.cc
===================================================================
--- runtime/vm/flow_graph_compiler_x64.cc	(revision 35723)
+++ runtime/vm/flow_graph_compiler_x64.cc	(working copy)
@@ -58,7 +58,9 @@
 RawDeoptInfo* CompilerDeoptInfo::CreateDeoptInfo(FlowGraphCompiler* compiler,
                                                  DeoptInfoBuilder* builder,
                                                  const Array& deopt_table) {
-  if (deopt_env_ == NULL) return DeoptInfo::null();
+  if (deopt_env_ == NULL) {
+    return DeoptInfo::null();
+  }
 
   intptr_t stack_height = compiler->StackSize();
   AllocateIncomingParametersRecursive(deopt_env_, &stack_height);
@@ -155,7 +157,9 @@
 #define __ assem->
   __ Comment("Deopt stub for id %" Pd "", deopt_id());
   __ Bind(entry_label());
-  if (FLAG_trap_on_deoptimization) __ int3();
+  if (FLAG_trap_on_deoptimization) {
+    __ int3();
+  }
 
   ASSERT(deopt_env() != NULL);