[release-branch.go1.11] runtime: mark sigInitIgnored nosplit

The sigInitIgnored function can be called by initsig before a shared
library is initialized, before the runtime is initialized.

Fixes golang#27183

Change-Id: I7073767938fc011879d47ea951d63a14d1cce878
Reviewed-on: https://go-review.googlesource.com/131277
Run-TryBot: Ian Lance Taylor <[email protected]>
Reviewed-by: Austin Clements <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>
(cherry picked from commit d20ecd6e5dab55376ea4f169eed63608f9bb3b2b)
Reviewed-on: https://go-review.googlesource.com/131278
Reviewed-by: Brad Fitzpatrick <[email protected]>

[release-branch.go1.10] go1.10.4

Change-Id: Idef60b8ac0411bacc09e98b0a79a7df7279d76bc
Reviewed-on: https://go-review.googlesource.com/131337
Run-TryBot: Andrew Bonventre <[email protected]>
Reviewed-by: Brad Fitzpatrick <[email protected]>

[release-branch.go1.11] go1.11rc2

Change-Id: Ib303cf7c8965d1d004f4c9e4935f9d4d54c5ee37
Reviewed-on: https://go-review.googlesource.com/130935
Run-TryBot: Andrew Bonventre <[email protected]>
Reviewed-by: Brad Fitzpatrick <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>

[release-branch.go1.11] go1.11rc1

Change-Id: I3bb2ad8f9f7283d76aa7d8999aa08c9f740c7b5d
Reviewed-on: https://go-review.googlesource.com/129236
Run-TryBot: Filippo Valsorda <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>
Reviewed-by: Brad Fitzpatrick <[email protected]>

net: skip flaky TestNotTemporaryRead on FreeBSD

Updates golang#25289

Change-Id: I662760b921be625aca988cd0b43c648ac5dfd814
Reviewed-on: https://go-review.googlesource.com/127837
Reviewed-by: Bryan C. Mills <[email protected]>
Run-TryBot: Brad Fitzpatrick <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>

cmd/go: fix TestScript/list_test_e on Windows

I forgot to run trybots on CL 123758, and the test failed on Windows because I
hard-coded a slash-delimited path.

Use the tent-in-a-box operator ([/\\]) to make the path platform-agnostic.

Change-Id: I9113ab60d21152c11e2ebdf822b58a44b1b38574
Reviewed-on: https://go-review.googlesource.com/125115
Run-TryBot: Bryan C. Mills <[email protected]>
Reviewed-by: Brad Fitzpatrick <[email protected]>

cmd/compile: improve escape analysis explanation

No code changes, only revised comments in an attempt to make
escape analysis slightly less confusing.

Updates golang#23109.

Change-Id: I5ee6cea0946ced63f6210ac4484a088bcdd862fb
Reviewed-on: https://go-review.googlesource.com/121001
Run-TryBot: David Chase <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>
Reviewed-by: Cherry Zhang <[email protected]>

[release-branch.go1.10] go1.10.3

Change-Id: If2abf35c922737d48ec72881428dc3353b016f7f
Reviewed-on: https://go-review.googlesource.com/116763
Run-TryBot: Filippo Valsorda <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>
Reviewed-by: Filippo Valsorda <[email protected]>

[release-branch.go1.9] go1.9.7

Change-Id: I417f9b711f92d0297d9d24272cb88365cdd945d3
Reviewed-on: https://go-review.googlesource.com/116497
Run-TryBot: Filippo Valsorda <[email protected]>
Reviewed-by: Filippo Valsorda <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>

[release-branch.go1.10] go1.10.2

Change-Id: I3d88ab55277e4386177cda06e2eb5a9b0e26cf93
Reviewed-on: https://go-review.googlesource.com/110338
Run-TryBot: Andrew Bonventre <[email protected]>
Reviewed-by: Andrew Bonventre <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>