proposal: let go install tool execute current module version of the tool

[aria3ppp]

Proposal Details

right now go install tool will install the tool on the global go bin dir
i propose that go install tool install a dumb binary on go bin dir that its sole job is to look up for the current directory (module root) bin dir and find the same tool name and then execute that binary with the same name as tool name in go bin dir
this way every golang module can use its own version of the tool

[seankhliao]

I think this would break too many users who expect the old behaviour of actually installing a usable tool outside a module.