TS18030: An optional chain cannot contain private identifiers

Bug Report

🔎 Search Terms

TS18030

🕗 Version & Regression Information

v4.1.3

• This is a crash
• This changed between versions ______ and _______
• This is the behavior in every version I tried, and I reviewed the FAQ for entries about _________
• I was unable to test this on prior versions because _______

⏯ Playground Link

Playground link with relevant code

💻 Code

class A {
	#p = 1;
	m (a? :A) {
		return a?.#p;
	}
}

🙁 Actual behavior

TS18030

🙂 Expected behavior

no error