[gjs: 11/11] Merge branch 'heapgraph' into 'master'

[Philip Chimento <pchimento src gnome org>]

commit a7609bf866b563691cd72b40f0c4c8405307852d
Merge: 3f6bc1e4 8639bf43
Author: Philip Chimento <philip chimento gmail com>
Date:   Sun Aug 18 19:21:24 2019 +0000

    Merge branch 'heapgraph' into 'master'
    
    Heapgraph improvements
    
    See merge request GNOME/gjs!325

 tools/heapdot.py   |  53 ++++++++----
 tools/heapgraph.md |  18 +++-
 tools/heapgraph.py | 235 +++++++++++++++++++++++++++++++++--------------------
 3 files changed, 203 insertions(+), 103 deletions(-)
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