// binding."
	if obj.Name() != "_" {
		if alt := scope.Insert(obj); alt != nil {
			err := check.newError(DuplicateDecl)
			err.addf(obj, "%s redeclared in this block", obj.Name())
			err.addAltDecl(alt)
			err.report()
			return
		}
		obj.setScopePos(pos)
	}
	if id != nil {
		check.recordDef(id, obj)
	}
}

// pathString returns a string of the form a->b-> ... ->g for a path [a, b, ... g].

	results, _ := check.collectParams(scope, ftyp.Results, false, scopePos)
	scope.squash(func(obj, alt Object) {
		err := check.newError(DuplicateDecl)
		err.addf(obj, "%s redeclared in this block", obj.Name())
		err.addAltDecl(alt)
		err.report()
	})

	if recvPar != nil {
		// recv parameter list present (may be empty)
		// spec: "The receiver is specified via an extra parameter section preceding the