Parameters properties do not parse when split into two lines

[OmarTawfik]

Bug Report

🔎 Search Terms

public parameter constructor class

🕗 Version & Regression Information

• Bug existed in all versions, even nightly, and reproducible on the playground.
• Playground link

💻 Code

class Foo {
    public constructor(
        // Parameter is parsed correctly
        public a: number, 
        // Parameter is actually parsed as two, with two different parse errors
        public 
        b: number) {
    }
}

Workbench Repro

🙁 Actual behavior

It fails to parse the parameter, with two irrelevant errors.

🙂 Expected behavior

It should be parsed correctly.

[DanielRosenwasser]

Technically there's no reason I can think of for a line terminator restriction, but we've generally tried no to fiddle too much with parameter properties in case we further conflict with future ECMAScript syntax.