net: make go resolver aware of network parameter

[zhangboyang]

Currently, the go resolver always send two DNS queries (A and AAAA) even
if tcp4/udp4/ip4 or tcp6/udp6/ip6 is used. This can cause unwanted
latencies when making IPv4-only or IPv6-only connections.

This change make go resolver aware of network parameter. Now, only one A
query is sent when tcp4/udp4/ip4 is used, and vice versa for
tcp6/udp6/ip6.

Fixes #45024

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This PR (HEAD: 4e50941) has been imported to Gerrit for code review.

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Message from Emmanuel Odeke:

Patch Set 1: Run-TryBot+1 Trust+1

(1 comment)

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Message from Go Bot:

Patch Set 1:

TryBots beginning. Status page: https://farmer.golang.org/try?commit=f44f1901

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Message from Emmanuel Odeke:

Patch Set 1:

(1 comment)

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Message from Go Bot:

Patch Set 1:

Build is still in progress...
This change failed on misc-compile-darwinarm64:
See https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-darwinarm64_b6cc6789.log

Other builds still in progress; subsequent failure notices suppressed until final report. Consult https://build.golang.org/ to see whether they are new failures. Keep in mind that TryBots currently test exactly your git commit, without rebasing. If your commit's git parent is old, the failure might've already been fixed.

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Message from Go Bot:

Patch Set 1: TryBot-Result-1

10 of 21 TryBots failed:
Failed on misc-compile-darwinarm64: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-darwinarm64_b6cc6789.log
Failed on misc-compile-darwin: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-darwin_1a9f852a.log
Failed on misc-compile-solaris: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-solaris_16568b5a.log
Failed on misc-compile-linuxarm: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-linuxarm_1a1d843c.log
Failed on misc-compile-ppc: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-ppc_28d8e2d0.log
Failed on misc-compile-freebsd: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-freebsd_f9dcaa56.log
Failed on misc-compile-netbsd: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-netbsd_09992625.log
Failed on misc-compile-mips: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-mips_f8b4eaef.log
Failed on misc-compile-other: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-other_51d4214b.log
Failed on misc-compile-openbsd: https://storage.googleapis.com/go-build-log/f44f1901/misc-compile-openbsd_2c11afbb.log

Consult https://build.golang.org/ to see whether they are new failures. Keep in mind that TryBots currently test exactly your git commit, without rebasing. If your commit's git parent is old, the failure might've already been fixed.

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[gopherbot]

This PR (HEAD: 3d30c48) has been imported to Gerrit for code review.

Please visit https://go-review.googlesource.com/c/go/+/301709 to see it.

Tip: You can toggle comments from me using the comments slash command (e.g. /comments off)
See the Wiki page for more info

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Message from Ian Lance Taylor:

Patch Set 2: Run-TryBot+1

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Message from Go Bot:

Patch Set 2:

TryBots beginning. Status page: https://farmer.golang.org/try?commit=3bc0df2c

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Message from Go Bot:

Patch Set 2: TryBot-Result+1

TryBots are happy.

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Message from Ian Lance Taylor:

Patch Set 2: Code-Review+2

(1 comment)

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Message from Zhang Boyang:

Patch Set 2:

(1 comment)

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Message from Emmanuel Odeke:

Patch Set 2: Trust+1

(1 comment)

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Message from Zhang Boyang:

Patch Set 2:

(1 comment)

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This PR is being closed because golang.org/cl/301709 has been merged.