Accessing a property of an uninitialized instance results in a Runtime error

[Alc-Alc]

Description

The code produces a runtime error instead of a compile-time error. I would anticipate this to be an error that could be identified during compile-time.

It's worth mentioning that removing the print and having just instance.x allows the compiled binary to execute without any runtime errors (exit code 0).

Reproduction

class SomeClass {
    let x: Int = 0
}

print(instance.x)
var instance = SomeClass()

Expected behavior

I expect this to be a compile-time error

Environment

swift-driver version: 1.87.1 Apple Swift version 5.9 (swiftlang-5.9.0.128.108 clang-1500.0.40.1)
Target: arm64-apple-macosx14.0

Additional information

No response

[jamieQ]

same issue as #70380 i believe

[AnthonyLatsis]

Duplicate of #70323