- Use isolate where it is appropriate.

runtime/vm/disassembler_arm64.cc

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/disassembler.h"
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM64.
 #if defined(TARGET_ARCH_ARM64)
 #include "platform/assert.h"
 
@@ skipping 522 matching lines @@
                                    dest);
       }
       return 5;
     }
     case 'r': {
       return FormatRegister(instr, format);
     }
     case 'v': {
       if (format[1] == 's') {
         ASSERT(STRING_STARTS_WITH(format, "vsz"));
-        char const* sz_str;
+        char const* sz_str = NULL;
         if (instr->Bits(14, 2) == 3) {
           switch (instr->Bit(22)) {
             case 0: sz_str = "s"; break;
             case 1: sz_str = "d"; break;
             default: UNREACHABLE(); break;
           }
         } else {
           switch (instr->Bit(22)) {
             case 0: sz_str = "w"; break;
             case 1: sz_str = "x"; break;
@@ skipping 790 matching lines @@
                                   human_buffer,
                                   sizeof(human_buffer),
                                   pc);
     pc += instruction_length;
   }
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM