Require ScriptInstance to be valid in the editor debugger
Require ScriptInstance to be valid in the editor debugger

This fixes an issue with visual scripts spamming error messages
in the editor when running the project with the remote scene tree
visible.

vkbsb/godot,guilhermefelipecgs/godot,Shockblast/godot,sanikoyes/godot,Zylann/godot,BastiaanOlij/godot,godotengine/godot,ZuBsPaCe/godot,sanikoyes/godot,sanikoyes/godot,guilhermefelipecgs/godot,Valentactive/godot,ZuBsPaCe/godot,josempans/godot,akien-mga/godot,Valentactive/godot,sanikoyes/godot,firefly2442/godot,Valentactive/godot,josempans/godot,Shockblast/godot,Zylann/godot,firefly2442/godot,pkowal1982/godot,Valentactive/godot,BastiaanOlij/godot,pkowal1982/godot,pkowal1982/godot,pkowal1982/godot,josempans/godot,Valentactive/godot,Shockblast/godot,ZuBsPaCe/godot,guilhermefelipecgs/godot,Zylann/godot,godotengine/godot,guilhermefelipecgs/godot,Shockblast/godot,Shockblast/godot,pkowal1982/godot,vkbsb/godot,vkbsb/godot,Shockblast/godot,josempans/godot,vkbsb/godot,josempans/godot,vkbsb/godot,godotengine/godot,godotengine/godot,ZuBsPaCe/godot,Zylann/godot,Zylann/godot,josempans/godot,firefly2442/godot,firefly2442/godot,Shockblast/godot,BastiaanOlij/godot,josempans/godot,akien-mga/godot,vkbsb/godot,akien-mga/godot,sanikoyes/godot,Valentactive/godot,ZuBsPaCe/godot,godotengine/godot,akien-mga/godot,Shockblast/godot,godotengine/godot,firefly2442/godot,pkowal1982/godot,firefly2442/godot,Valentactive/godot,BastiaanOlij/godot,guilhermefelipecgs/godot,Zylann/godot,godotengine/godot,pkowal1982/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,sanikoyes/godot,akien-mga/godot,godotengine/godot,BastiaanOlij/godot,vkbsb/godot,ZuBsPaCe/godot,firefly2442/godot,akien-mga/godot,vkbsb/godot,Zylann/godot,josempans/godot,guilhermefelipecgs/godot,akien-mga/godot,guilhermefelipecgs/godot,sanikoyes/godot,BastiaanOlij/godot,sanikoyes/godot,Valentactive/godot,BastiaanOlij/godot,Zylann/godot,firefly2442/godot,BastiaanOlij/godot,pkowal1982/godot,ZuBsPaCe/godot,akien-mga/godot