Added a version of the v8::HandleScope constructor with an Isolate and use that consistently.

test/cctest/test-disasm-arm.cc

Index: test/cctest/test-disasm-arm.cc
diff --git a/test/cctest/test-disasm-arm.cc b/test/cctest/test-disasm-arm.cc
index 58e18a6e48b45de0337933579a2c5f26436cab7a..c7c770f55530b2c04269ba35e95f580041234bdd 100644
--- a/test/cctest/test-disasm-arm.cc
+++ b/test/cctest/test-disasm-arm.cc
@@ -72,11 +72,12 @@ bool DisassembleAndCompare(byte* pc, const char* compare_string) {
 // Set up V8 to a state where we can at least run the assembler and
 // disassembler. Declare the variables and allocate the data structures used
 // in the rest of the macros.
-#define SET_UP()                                           \
+#define SET_UP()                                          \
   InitializeVM();                                         \
-  v8::HandleScope scope;                                  \
+  Isolate* isolate = Isolate::Current();                  \
+  HandleScope scope(isolate);                             \
   byte *buffer = reinterpret_cast<byte*>(malloc(4*1024)); \
-  Assembler assm(Isolate::Current(), buffer, 4*1024);     \
+  Assembler assm(isolate, buffer, 4*1024);                \
   bool failure = false;