//args: -Epredeclared package testdata func hello() { var real int // ERROR "variable real has same name as predeclared identifier" a := A{} copy := Clone(a) // ERROR "variable copy has same name as predeclared identifier" // suppress any "declared but not used" errors _ = real _ = a _ = copy } type A struct { true bool foo int } func Clone(a A) A { return A{ true: a.true, foo: a.foo, } } func recover() {} // ERROR "function recover has same name as predeclared identifier"