extensions/typescript-language-features/src/languageFeatures/completions.ts/MyCompletionItem/resolveRange
class MyCompletionItem:	private resolveRange(): void {
		if (this.range) {
			return;
		}

		const replaceRange = this.getFuzzyWordRange();
		if (replaceRange) {
			this.range = {
				inserting: new vscode.Range(replaceRange.start, this.position),
				replacing: replaceRange
			};
		}
	}