Visual Script dictionary erase is not sequenced.

[fire]

Godot version:
3.2.1-stable

OS/device including version:
win 10

Issue description:
Dictionary erase in Godot isn't sequenced so the order is undetermined.

@swarnimarun @kidrigger I think it's just a boolean that isn't selected.

Steps to reproduce:

Array erase does it properly.

Minimal reproduction project:
New Game Project.zip

[bojidar-bg]

Basically, it should be marked ADDFUNC1RNC here:

godot/core/variant_call.cpp

Line 1960 in ff14d07

ADDFUNC1R(DICTIONARY, BOOL, Dictionary, erase, NIL, "key", varray());