heedy/heedy: backend/assets/hclparse.go; 16 LoC

Found a possible issue in [heedy/heedy](https://www.github.com/heedy/heedy) at [backend/assets/hclparse.go](https://github.com/heedy/heedy/blob/6c811fbd91c19bc6f3917efb6b7541f8673bde02/backend/assets/hclparse.go#L290-L305)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first
issue it finds, so please do not limit your consideration to the contents of the below message.

> function call at line 292 may store a reference to v

[Click here to see the code in its original context.](https://github.com/heedy/heedy/blob/6c811fbd91c19bc6f3917efb6b7541f8673bde02/backend/assets/hclparse.go#L290-L305)

Click here to show the 16 line(s) of Go which triggered the analyzer.

```go
for _, v := range hc.RunTypes {
r := RunType{}
CopyStructIfPtrSet(&r, &v)

if v.Schema != nil {
m, err := loadJSONObject(v.Schema)
if err != nil {
return nil, err
}
r.Schema = *m
} else {
r.Schema = make(map[string]interface{})
}

c.RunTypes[v.Label] = r
}

```

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See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: 6c811fbd91c19bc6f3917efb6b7541f8673bde02