RFC: Switch to ast ids (instead of positions) for type feedback.

src/disassembler.cc

Index: src/disassembler.cc
diff --git a/src/disassembler.cc b/src/disassembler.cc
index bb0a07229ab7e5f03e43e61eae9109243ec3d78a..f38d42fc42addb7a5ea16994374645c423b3d60e 100644
--- a/src/disassembler.cc
+++ b/src/disassembler.cc
@@ -278,6 +278,9 @@ static int DecodeIt(FILE* f,
         } else {
           out.AddFormatted(" %s", Code::Kind2String(kind));
         }
+        if (rmode == RelocInfo::CODE_TARGET_WITH_ID) {
+          out.AddFormatted(" (id = %d)", static_cast<int>(relocinfo.data()));
+        }
       } else if (rmode == RelocInfo::RUNTIME_ENTRY) {
         // A runtime entry reloinfo might be a deoptimization bailout.
         Address addr = relocinfo.target_address();