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..1f3364a9d71af885412645899e3f0fd3f3206fd2 100644
--- a/test/cctest/test-code-cache.cc
+++ b/test/cctest/test-code-cache.cc
@@ -14,12 +14,14 @@ namespace internal {
 namespace {
 
 static Handle<Code> GetDummyCode(Isolate* isolate) {
-  CodeDesc desc = {nullptr,   // buffer
-                   0,         // buffer_size
-                   0,         // instr_size
-                   0,         // reloc_size
-                   0,         // constant_pool_size
-                   nullptr};  // origin
+  CodeDesc desc = {nullptr,  // buffer
+                   0,        // buffer_size
+                   0,        // instr_size
+                   0,        // reloc_size
+                   0,        // constant_pool_size
+                   nullptr,  // origin
+                   nullptr,  // unwinding_info
+                   0};       // unwinding_info_size
   Code::Flags flags =
       Code::ComputeFlags(Code::LOAD_IC, kNoExtraICState, kCacheOnReceiver);
   Handle<Code> self_ref;