jsonconfig.Obj.int functions are actually checking for floats

[stephens2424]

Found while writing a test for github.com/perkeep/perkeep/issues/443. I was getting the error

    proxycache_test.go:259: Expected config key "maxCacheBytes" to be a number

whether I was passing an untyped number literal or an int64 directly. The test code looks like:

        const maxBytes int64 = 1 << 5
        px, ds := NewProxiedDisk(t)

        ld := test.NewLoader()
        ld.SetStorage("origin", ds) 
        ld.SetStorage("cache", px) 

        cache, err := newFromConfig(ld, jsonconfig.Obj{
                "origin":        "origin",
                "cache":         "cache",
                "maxCacheBytes": maxBytes,
        })

After I tweaked this code, it was fine. PR forthcoming

[stephens2424]

https://review.gerrithub.io/#/c/346661/

[mpl]

I think that float64 particularity of JSON got me confused enough once too that I also proposed that sort of a change. Since that now makes two of us, I've now submitted this:

https://review.gerrithub.io/346869

[stephens2424]

Ah, that's right. Whoops :)

I'll have to take another look at my motivating example here, though, because I still suspect there's some problem in there. I was definitely giving that field a number, but kept getting that error. Or is there something else I'm missing that you also got stuck on?