$ cat ~/tmp/haha.go 
package haha

import "hihi"

func init() {
    HahaImpl := haha
}

// Haha hihi hehe!
//
//go:noescape
func haha()

$ # Notice the misplaced compiler directive in the output below.
$ go tool cover -mode atomic -var Haha5678901234567890123 ~/tmp/haha.go
package haha

import _cover_atomic_ "sync/atomic"

import "hihi"

func init() {
    _cover_atomic_.AddUint32(&Haha5678901234567890123.

    //go:noescape
    Count[0], 1)
    HahaImpl := haha
}

func haha()

var _ = _cover_atomic_.AddUint32

var Haha5678901234567890123 = struct {
    Count     [1]uint32
    Pos       [3 * 1]uint32
    NumStmt   [1]uint16
} {
    Pos: [3 * 1]uint32{
        5, 7, 0x2000d, // [0]
    },
    NumStmt: [1]uint16{
        1, // 0
    },
}