$ cat  gopls/internal/regtest/marker/testdata/codeaction/extract_issue61496.txt
This test verifies extraction of a function
whose parameters include anonymous struct types.
It is a regression test for issue #61496.

-- go.mod --
module testdata
go 1.18

-- a.go --
package testdata

func _() {
	var x struct { y int }	//@ codeaction("refactor.extract", "var", end, anon)
	println(x.y)		//@ loc(end, ")")
}

-- @anon/a.go --
xxx

-- @localtype/b.go --
package testdata

func _() {
        type T int 
	var x T 		//@ codeaction("refactor.extract", "var", end, anon)
	println(x.y)		//@ loc(end, ")")
}

-- @localtype/b.go --
xxx