cmd/vendor: update vendored x/arch repo to 8a70ba74b3a1

Update vendored x/arch repo to pick up the fix of issue #33802.

This is done with the following commands:

$ cd $GOROOT/src/cmd
$ go get -d golang.org/x/arch@latest
go: finding golang.org/x/arch latest
go: downloading golang.org/x/arch v0.0.0-20190815191158-8a70ba74b3a1
go: extracting golang.org/x/arch v0.0.0-20190815191158-8a70ba74b3a1
$ go mod tidy
$ go mod vendor

Fixes #33802.

Change-Id: I0a44f1d83d6f573124cea1f099378b1c851f3feb
Reviewed-on: https://go-review.googlesource.com/c/go/+/191619
Run-TryBot: Cherry Zhang <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>
Reviewed-by: Emmanuel Odeke <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>
Reviewed-by: Jay Conrod <[email protected]>

Author: cherrymui

src/cmd/go.mod

@@ -5,7 +5,7 @@ go 1.12
 require (
 	github.com/google/pprof v0.0.0-20190515194954-54271f7e092f
 	github.com/ianlancetaylor/demangle v0.0.0-20180524225900-fc6590592b44 // indirect
-	golang.org/x/arch v0.0.0-20181203225421-5a4828bb7045
+	golang.org/x/arch v0.0.0-20190815191158-8a70ba74b3a1
 	golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c
 	golang.org/x/sys v0.0.0-20190502175342-a43fa875dd82 // indirect
 	golang.org/x/tools v0.0.0-20190611154301-25a4f137592f

src/cmd/go.sum

@@ -2,8 +2,8 @@ github.com/google/pprof v0.0.0-20190515194954-54271f7e092f h1:Jnx61latede7zDD3Di
 github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/ianlancetaylor/demangle v0.0.0-20180524225900-fc6590592b44 h1:pKqc8lAAA6rcwpvsephnRuZp4VHbfszZRClvqAE6Sq8=
 github.com/ianlancetaylor/demangle v0.0.0-20180524225900-fc6590592b44/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
-golang.org/x/arch v0.0.0-20181203225421-5a4828bb7045 h1:Pn8fQdvx+z1avAi7fdM2kRYWQNxGlavNDSyzrQg2SsU=
-golang.org/x/arch v0.0.0-20181203225421-5a4828bb7045/go.mod h1:cYlCBUl1MsqxdiKgmc4uh7TxZfWSFLOGSRR090WDxt8=
+golang.org/x/arch v0.0.0-20190815191158-8a70ba74b3a1 h1:A71BZbKSu+DtCNry/x5JKn20C+64DirDHmePEA8k0FY=
+golang.org/x/arch v0.0.0-20190815191158-8a70ba74b3a1/go.mod h1:flIaEI6LNU6xOCD5PaJvn9wGP0agmIOqjrtsKGRguv4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c h1:Vj5n4GlwjmQteupaxJ9+0FNOmBrHfq7vN4btdGoDZgI=
 golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@@ -17,3 +17,4 @@ golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/tools v0.0.0-20190611154301-25a4f137592f h1:6awn5JC4pwVI5HiBqs7MDtRxnwV9PpO5iSA9v6P09pA=
 golang.org/x/tools v0.0.0-20190611154301-25a4f137592f/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
+rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

src/cmd/vendor/golang.org/x/arch/x86/x86asm/decode.go

@@ -16,7 +16,7 @@ github.com/google/pprof/third_party/d3flamegraph
 github.com/google/pprof/third_party/svgpan
 # github.com/ianlancetaylor/demangle v0.0.0-20180524225900-fc6590592b44
 github.com/ianlancetaylor/demangle
-# golang.org/x/arch v0.0.0-20181203225421-5a4828bb7045
+# golang.org/x/arch v0.0.0-20190815191158-8a70ba74b3a1
 golang.org/x/arch/arm/armasm
 golang.org/x/arch/arm64/arm64asm
 golang.org/x/arch/ppc64/ppc64asm