Please describe the problem:
valac doesn't complain or work-around for methods named "register" (and possibly other C reserved words - non existing in vala), but generated c compilation fails. 

Steps to reproduce:
using GLib;

class Foo : GLib.Object {
	public string register() {
		return "Foo\n";
	}

	static int main (string[] args) {
		var foo = new Foo(); 
		foo.register();
		
		return 0;
	}
}

Actual results:


Expected results:


Does this happen every time?


Other information: