A class method named static is a SyntaxError, and get followed by a line break and a name without parameters is accepted #1729

Environment: XS 17.9.3, slot 32 bytes, ID 4 bytes (xst from Moddable SDK 9.5.0, the build the test262 CI installs; same commit as public b6e06ba), Linux x86_64

Description
Two class element parsing problems, found with the new tests in tc39/test262#5142, which V8, SpiderMonkey, JavaScriptCore and GraalJS pass.

1. A method named static is rejected:

class C {
  static() { return 1; }
}
// SyntaxError: missing identifier

The same with the parameter list on the next line (static / () {}). static static() {} works.

2. get, a line break, then a name with no parameter list is accepted:

class C {
  get
  a
}
Object.getOwnPropertyNames(new C());
// => ["a"]

Steps to Reproduce
Run the snippets above with xst.

Expected behavior

1. static is a valid ClassElementName (ClassElementName : PropertyName, with static as an IdentifierName), so static() {} is a MethodDefinition named static. ( cannot start a ClassElementName, so it is not the static modifier, whether or not a line break comes first.
2. A SyntaxError. MethodDefinition : get ClassElementName ( ) { FunctionBody } has no [no LineTerminator here] after get, so a name on the next line is allowed and automatic semicolon insertion does not end the element after get. get a then needs a parameter list, and neither } nor a semicolon inserted before it completes the getter. V8, SpiderMonkey and JavaScriptCore throw a SyntaxError.

Actual behavior

1. SyntaxError: missing identifier.
2. The class parses with a single field a; the get is dropped. In test262 this shows as This statement should not be evaluated. for language/{statements,expressions}/class/elements/syntax/early-errors/grammar-get-followed-by-name-on-next-line-without-parameters-error.js; the other failing file is language/statements/class/elements/syntax/valid/grammar-method-named-static.js.

Other information
Getters and setters with a line break after get or set, and static followed by a line break and a method or field, already work in XS.