Refactored Variant setters/getters

[reduz]

• Discern between named, indexed and keyed
• Get direct access to functions for typed GDScript and GDNative bindings
• Small changes to some classes in order to work with the new setget binder

[qarmin]

For me, this build always crash when trying to open editor or project manager - Segmentation fault (core dumped)

Valgrind log(Godot opens 10 minutes)

==84891== Stack overflow in thread #1: can't grow stack to 0x1ffe801000
==84891== Stack overflow in thread #1: can't grow stack to 0x1ffe801000
==84891== Can't extend stack to 0x1ffe8010a8 during signal delivery for thread 1:
==84891==   no stack segment
==84891== 
==84891== Process terminating with default action of signal 11 (SIGSEGV)
==84891==  Access not within mapped region at address 0x1FFE8010A8
==84891== Stack overflow in thread #1: can't grow stack to 0x1ffe801000
==84891==    at 0x1D2E713: HashMap<StringName, ClassDB::ClassInfo, HashMapHasherDefault, HashMapComparatorDefault<StringName>, (unsigned char)3, (unsigned char)8>::get_element(StringName const&) const (hash_map.h:175)
==84891==  If you believe this happened as a result of a stack
==84891==  overflow in your program's main thread (unlikely but
==84891==  possible), you can try to increase the size of the
==84891==  main thread stack using the --main-stacksize= flag.
==84891==  The main thread stack size used in this run was 8388608.
==84891== Stack overflow in thread #1: can't grow stack to 0x1ffe801000
==84891== 
==84891== Process terminating with default action of signal 11 (SIGSEGV)
==84891==  Access not within mapped region at address 0x1FFE801F70
==84891== Stack overflow in thread #1: can't grow stack to 0x1ffe801000
==84891==    at 0x8807134: _vgnU_freeres (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_core-amd64-linux.so)
==84891==  If you believe this happened as a result of a stack
==84891==  overflow in your program's main thread (unlikely but
==84891==  possible), you can try to increase the size of the
==84891==  main thread stack using the --main-stacksize= flag.
==84891==  The main thread stack size used in this run was 8388608.

[reduz]

@aaronfranke nice catches, thanks! fixing in my local branch as I have some other fixes in the works.

[reduz]

@qarmin fixed the crash locally, I thought everything worked fine but was running an old binary :( will force push with fixes in a bit

[qarmin]

Code

extends Node2D

func _ready() -> void:
	var arr : Array = [25,235236,236,236,23,6,236,236,236,23,634,63,7,35,4734,64,64,34,62,72,32,535]
	arr[-36235 % arr.size()]

shows error Invalid get index '-1'(on base 'Array')

[reduz]

@qarmin good catch! I completely forgot we allow negative indices in arrays!

[vnen]

LGTM