Installing extra debugging symbols to use with printers

[Da Viper]

**Using Debugging symbols or not**

**Current Situation**

Some types in QT does not have any information when it is printed out, take
for example `QFile`

we create a QFile like below
```c++
    QFile file("/a/path/to/some/place");
```
if try to print this is `GDB` it returns
```gdb
    (gdb) p file
    $1 = <incomplete type>
```

There are two ways which this problem can be solved i either read the
important variables directly from the memory location or i install
debugging symbols

I am not sure which do, so i ask for some input.

**Why not to use**

- currently i have not seen any pretty printer that requires you to install
debugging symbols in order to use it. (Qt creator or Microsoft visual
studio or existing qt printers do not)
- some distros do not have debugging symbols for qt in its repositories,
e.g arch linux, manjaro but requires you to add another repo
- the debugging process becomes slower than when the symbols are added
(core-dbgsym for console, gui-dbgsym for gui, charts etc this gets slower
the more you add)


**Why to use**

- you can be able to access internal variables with ease
- you can be sure the structure would be the same if there is a new version
(although qt does not change often but some times do if there is a major
version)
- the structure is the same irrespective of the operating system or
architecture
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