A64: Make the Decoder a template

test/cctest/test-assembler-a64.cc

Index: test/cctest/test-assembler-a64.cc
diff --git a/test/cctest/test-assembler-a64.cc b/test/cctest/test-assembler-a64.cc
index cb5a0b22474e16967524c979e4224d50449d3027..08b351987d61d464c4f2fd735719e5417470cf49 100644
--- a/test/cctest/test-assembler-a64.cc
+++ b/test/cctest/test-assembler-a64.cc
@@ -35,6 +35,7 @@
 
 #include "macro-assembler.h"
 #include "a64/simulator-a64.h"
+#include "a64/decoder-a64-inl.h"
 #include "a64/disasm-a64.h"
 #include "a64/utils-a64.h"
 #include "cctest.h"
@@ -112,15 +113,15 @@ static void InitializeVM() {
 #ifdef USE_SIMULATOR
 
 // Run tests with the simulator.
-#define SETUP_SIZE(buf_size)                                                   \
-  Isolate* isolate = Isolate::Current();                                       \
-  HandleScope scope(isolate);                                                  \
-  ASSERT(isolate != NULL);                                                     \
-  byte* buf = new byte[buf_size];                                              \
-  MacroAssembler masm(isolate, buf, buf_size);                                 \
-  Decoder decoder;                                                             \
-  Simulator simulator(&decoder);                                               \
-  PrintDisassembler* pdis = NULL;                                              \
+#define SETUP_SIZE(buf_size)                   \
+  Isolate* isolate = Isolate::Current();       \
+  HandleScope scope(isolate);                  \
+  ASSERT(isolate != NULL);                     \
+  byte* buf = new byte[buf_size];              \
+  MacroAssembler masm(isolate, buf, buf_size); \
+  Decoder<DispatchingDecoderVisitor> decoder;  \
+  Simulator simulator(&decoder);               \
+  PrintDisassembler* pdis = NULL;              \
   RegisterDump core;
 
 /*  if (Cctest::trace_sim()) {                                                 \