src/vs/workbench/services/textmodelResolver/common/textModelResolverService.ts/TextModelResolverService/canHandleResource
class TextModelResolverService:	canHandleResource(resource: URI): boolean {
		if (this.fileService.hasProvider(resource) || resource.scheme === Schemas.untitled || resource.scheme === Schemas.inMemory) {
			return true; // we handle file://, untitled:// and inMemory:// automatically
		}

		return this.resourceModelCollection.hasTextModelContentProvider(resource.scheme);
	}