src/vs/platform/configuration/common/configurationRegistry.ts/ConfigurationRegistry/registerOverrideIdentifiers
class ConfigurationRegistry:	public registerOverrideIdentifiers(overrideIdentifiers: string[]): void {
		for (const overrideIdentifier of overrideIdentifiers) {
			this.overrideIdentifiers.add(overrideIdentifier);
		}
		this.updateOverridePropertyPatternKey();
	}