src/vs/workbench/services/editor/browser/editorOverrideService.ts/EditorOverrideService/getAllUserAssociations
class EditorOverrideService:	private getAllUserAssociations(): EditorAssociations {
		const rawAssociations = this.configurationService.getValue<{ [fileNamePattern: string]: string }>(editorsAssociationsSettingId) || {};
		let associations = [];
		for (const [key, value] of Object.entries(rawAssociations)) {
			const association: EditorAssociation = {
				filenamePattern: key,
				viewType: value
			};
			associations.push(association);
		}
		return associations;
	}