Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+Hunting Leaks
+=============
+
+.. contents:: Table of Contents
+    :local:
+    :depth: 2
+
+Different tools and techniques are used to hunt leaks:
+
+.. list-table::
+   :header-rows: 1
+
+   * - Tools
+     - Description
+   * - :ref:`Bloatview`
+     - BloatView is a tool that shows information about cumulative memory usage and leaks.
+   * - :ref:`Refcount Tracing and Balancing`
+     - Refcount tracing and balancing are advanced techniques for tracking down leak of refcounted objects found with BloatView.
+   * - `GC and CC logs </performance/memory/gc_and_cc_logs.html>`_
+     - Garbage collector (GC) and cycle collector (CC) logs give information about why various JS and C++ objects are alive in the heap.
+   * - :ref:`DMD Heap Scan Mode`
+     - Heap profiler within Firefox