Attempting to add weight changes to every rbyd append

This does not work as is due to ambiguity with grows and insertions.

Before, these were disambiguated by seperate grow and attr tags. You
effectively grew the neighboring id before claiming its weight
as yours. But now that the attr itself creates the grow/insertion,
it's ambiguous which one is intended.

scripts/dbgrbyd.py

@@ -16,20 +16,20 @@ COLORS = [
 ]
 
 
-TAG_UNREACHABLE = 0x0002
-TAG_NAME        = 0x1000
-TAG_BNAME       = 0x1000
-TAG_REG         = 0x1010
-TAG_DIR         = 0x1020
-TAG_STRUCT      = 0x3000
-TAG_INLINED     = 0x3000
-TAG_BLOCK       = 0x3100
-TAG_BRANCH      = 0x3200
-TAG_BTREE       = 0x3300
-TAG_UATTR       = 0x4000
-TAG_ALT         = 0x0008
-TAG_CRC         = 0x0004
-TAG_FCRC        = 0x1004
+TAG_UNR     = 0x0002
+TAG_NAME    = 0x1000
+TAG_BNAME   = 0x1000
+TAG_REG     = 0x1010
+TAG_DIR     = 0x1020
+TAG_STRUCT  = 0x3000
+TAG_INLINED = 0x3000
+TAG_BLOCK   = 0x3100
+TAG_BRANCH  = 0x3200
+TAG_BTREE   = 0x3300
+TAG_UATTR   = 0x4000
+TAG_ALT     = 0x0008
+TAG_CRC     = 0x0004
+TAG_FCRC    = 0x1004
 
 def blocklim(s):
     if '.' in s:
@@ -92,8 +92,8 @@ def xxd(data, width=16, crc=False):
                 for b in map(chr, data[i:i+width])))
 
 def tagrepr(tag, id, size, off=None):
-    if (tag & 0xfffe) == TAG_UNREACHABLE:
-        return 'unreachable id%d%s' % (
+    if (tag & 0xfffe) == TAG_UNR:
+        return 'unr id%d%s' % (
             id,
             ' %d' % size if size else '')
     elif (tag & 0xf00c) == TAG_NAME: