Add a new API V8::SetJitCodeEventHandler to push code name and location to users such as profilers.

src/x64/regexp-macro-assembler-x64.cc

Index: src/x64/regexp-macro-assembler-x64.cc
diff --git a/src/x64/regexp-macro-assembler-x64.cc b/src/x64/regexp-macro-assembler-x64.cc
index 86f7bfe6ca66533853f9c93f03851b05ef7c1e4a..e3fbebc4c3ba7c8a651029045973b2db5f60ba65 100644
--- a/src/x64/regexp-macro-assembler-x64.cc
+++ b/src/x64/regexp-macro-assembler-x64.cc
@@ -1098,6 +1098,7 @@ Handle<HeapObject> RegExpMacroAssemblerX64::GetCode(Handle<String> source) {
       code_desc, Code::ComputeFlags(Code::REGEXP),
       masm_.CodeObject());
   PROFILE(isolate, RegExpCodeCreateEvent(*code, *source));
+  JIT_CODE_EVENT(AddCode(*source, *code));
   return Handle<HeapObject>::cast(code);
 }