src/vs/workbench/services/extensions/common/abstractExtensionService.ts/AbstractExtensionService/_onDidActivateExtension
class AbstractExtensionService:	private _onDidActivateExtension(extensionId: ExtensionIdentifier, codeLoadingTime: number, activateCallTime: number, activateResolvedTime: number, activationReason: ExtensionActivationReason): void {
		this._extensionHostActivationTimes.set(ExtensionIdentifier.toKey(extensionId), new ActivationTimes(codeLoadingTime, activateCallTime, activateResolvedTime, activationReason));
		this._onDidChangeExtensionsStatus.fire([extensionId]);
	}