$ go install github.com/gostaticanalysis/ptrls/cmd/ptrls@latest
$ cd testdata/a
$ cat a.go
package main
func main() {
f(map[string]int{})
f(map[string]int{})
}
func f(m map[string]int) {
println(len(m))
}
$ ptrls `pwd`/a.go 80
m
a.go:4:18 map[string]int
a.go:5:18 map[string]int