Bug 1897179 - Update GeckoView native debugging docs with new symbols search dir. r=geckoview-reviewers,nalexander,ohall

The location of the built libraries was changed by bug 1459764.

Additionally update the search paths in the .lldbinit file that gets
put in the objdir during build.

Differential Revision: https://phabricator.services.mozilla.com/D210667

build/.lldbinit.in

@@ -8,9 +8,7 @@ script topsrcdir = "@topsrcdir@"; lldb.debugger.HandleCommand("command source -s
 settings set symbols.enable-external-lookup true
 
 # This is where libxul.so and libmozglue.so are produced in full builds.
-settings append target.exec-search-paths @topobjdir@/toolkit/library/build
-settings append target.exec-search-paths @topobjdir@/mozglue/build
-settings append target.exec-search-paths @topobjdir@/security
+settings append target.exec-search-paths @topobjdir@/dist/bin
 
 # This is where artifact builds unpacks "crashreporter-symbols-full" uncompressed ELF debug symbols.
 settings append target.debug-file-search-paths @topobjdir@/dist/crashreporter-symbols

mobile/android/docs/geckoview/contributor/native-debugging.rst

@@ -64,15 +64,12 @@ exist) and add the following lines.
 The first line tells LLDB to enable inline breakpoints - Android Studio
 will need this if you want to use visual breakpoints.
 
-The remaining lines tell LLDB where to go to find the symbols for
-debugging.
+The next line tells LLDB where to go to find the symbols for debugging.
 
 .. code:: bash
 
    settings set target.inline-breakpoint-strategy always
-   settings append target.exec-search-paths <PATH>/objdir-android-opt/toolkit/library/build
-   settings append target.exec-search-paths <PATH>/objdir-android-opt/mozglue/build
-   settings append target.exec-search-paths <PATH>/objdir-android-opt/security
+   settings append target.exec-search-paths <PATH>/objdir-android-opt/dist/bin
 
 Set up Android Studio to perform native debugging.
 ==================================================
@@ -89,8 +86,8 @@ Set up Android Studio to perform native debugging.
    that configures Gecko and child processes in order to attach
    debuggers at the correct times.
 4. Under ``Symbol Directories``, add a new path pointing to
-   ``<PATH>/objdir-android-opt/toolkit/library/build``, the same path
-   that you entered into your ``.lldbinit`` file.
+   ``<PATH>/objdir-android-opt/dist/bin``, the same path that you
+   entered into your ``.lldbinit`` file.
 5. Select ``Apply`` and ``OK`` to close the window.
 
 Debug Native code in Android Studio