Add timestamps to JIT/DEX native debug info.

This a forward-looking change intended to allow simpleperf to
reliably correlate samples and native debug information.

I have added the timestamps to both JIT and DEX, and refactored
the code in the process to avoid code duplication.

Test: testrunner.py -t 137
Change-Id: I45fa4310305aff540e036db9af15a86c5b8b7aff
diff --git a/compiler/optimizing/optimizing_compiler.cc b/compiler/optimizing/optimizing_compiler.cc
index b3f23a0..e42dfc1 100644
--- a/compiler/optimizing/optimizing_compiler.cc
+++ b/compiler/optimizing/optimizing_compiler.cc
@@ -1411,13 +1411,12 @@
       mini_debug_info,
       ArrayRef<const debug::MethodDebugInfo>(&info, 1));
   MutexLock mu(Thread::Current(), *Locks::native_debug_interface_lock_);
-  JITCodeEntry* entry = CreateJITCodeEntry(elf_file);
-  IncrementJITCodeEntryRefcount(entry, info.code_address);
+  AddNativeDebugInfoForJit(reinterpret_cast<const void*>(info.code_address), elf_file);
 
   VLOG(jit)
       << "JIT mini-debug-info added for " << ArtMethod::PrettyMethod(method)
       << " size=" << PrettySize(elf_file.size())
-      << " total_size=" << PrettySize(GetJITCodeEntryMemUsage());
+      << " total_size=" << PrettySize(GetJitNativeDebugInfoMemUsage());
 }
 
 }  // namespace art