Initial support for emitting unwinding information in perf jitdump.

test/cctest/test-code-cache.cc

Index: test/cctest/test-code-cache.cc
diff --git a/test/cctest/test-code-cache.cc b/test/cctest/test-code-cache.cc
index 5ec2f0bf944a45807559173c97d7b34d3c669233..817fa15b34d8516f50bf49d39c32daeb7a9401c4 100644
--- a/test/cctest/test-code-cache.cc
+++ b/test/cctest/test-code-cache.cc
@@ -19,6 +19,8 @@ static Handle<Code> GetDummyCode(Isolate* isolate) {
                    0,         // instr_size
                    0,         // reloc_size
                    0,         // constant_pool_size
+                   nullptr,   // unwinding_info
+                   0,         // unwinding_info_size
                    nullptr};  // origin
   Code::Flags flags =
       Code::ComputeFlags(Code::LOAD_IC, kNoExtraICState, kCacheOnReceiver);