[dev.typeparams] all: merge master (f22ec51d) into dev.typeparams

Merge List:

+ 2021-05-25 f22ec51d doc: add Go 1.17 release note about inlining functions with closures
+ 2021-05-25 8b462d75 cmd/go: add a -compat flag to 'go mod tidy'
+ 2021-05-24 c89f1224 net: verify results from Lookup* are valid domain names
+ 2021-05-24 08a8fa9c misc/wasm: ensure correct stack pointer in catch clauses
+ 2021-05-24 32b73ae1 cmd/go: align checks of module path during initialization.
+ 2021-05-24 15d9d4a0 cmd/go: add tests illustrating what happens when Go 1.16 is used in a Go 1.17 main module
+ 2021-05-24 873401df cmd/compile: ensure equal functions don't do unaligned loads
+ 2021-05-24 b8361069 cmd/compile: record regabi status in DW_AT_producer
+ 2021-05-24 a22e3172 cmd/compile: always include underlying type for map types
+ 2021-05-24 4356e7e8 runtime: account for spill slots in Windows callback compilation
+ 2021-05-24 52d7033f cmd/go/internal/modload: set the default GoVersion in a single location
+ 2021-05-24 05819bc1 cmd/go/internal/modcmd: factor out a type for flags whose arguments are Go versions
+ 2021-05-22 cca23a73 cmd/compile: revert CL/316890
+ 2021-05-21 f87194cb doc/go1.17: document changes to net/http package
+ 2021-05-21 217f5dd4 doc: document additional atomic.Value methods
+ 2021-05-21 3c656445 cmd/go: in TestScript/mod_replace, download an explicit module path
+ 2021-05-21 76b2d6af os: document that StartProcess puts files into blocking mode
+ 2021-05-21 e4d7525c cmd/dist: display first class port status in json output
+ 2021-05-21 4fb10b21 cmd/go: in 'go mod download' without args, don't save module zip sums
+ 2021-05-21 4fda54ce doc/go1.17: document database/sql changes for Go 1.17
+ 2021-05-21 8876b9bd doc/go1.17: document io/fs changes for Go 1.17
+ 2021-05-21 5fee772c doc/go1.17: document archive/zip changes for Go 1.17
+ 2021-05-21 3148694f cmd/go: remove warning from module deprecation notice printing
+ 2021-05-21 7e63c8b7 runtime: wait for Go runtime to initialize in Windows signal test
+ 2021-05-21 831573cd io/fs: added an example for io/fs.WalkDir
+ 2021-05-20 baa934d2 cmd: go get golang.org/x/tools/analysis@49064d23 && go mod vendor
+ 2021-05-20 7c692cc7 doc/go1.17: document changes to os package
+ 2021-05-20 ce9a3b79 crypto/x509: add new FreeBSD 12.2+ trusted certificate folder
+ 2021-05-20 f8be906d test: re-enable test on riscv64 now that it supports external linking
+ 2021-05-20 def53605 doc/go1.17: add release notes for OpenBSD ports
+ 2021-05-20 ef1f52cc doc/go1.17: add release note for windows/arm64 port
+ 2021-05-20 bb7495a4 doc/go1.17: document new math constants
+ 2021-05-20 f07e4dae syscall: document NewCallback and NewCallbackCDecl limitations
+ 2021-05-20 a8d85918 misc/cgo/testplugin: skip TestIssue25756pie on darwin/arm64 builder
+ 2021-05-19 6c1c055d cmd/internal/moddeps: use filepath.SkipDir only on directories
+ 2021-05-19 658b5e66 net: return nil UDPAddr from ReadFromUDP
+ 2021-05-19 15a374d5 test: check portable error message on issue46234.go
+ 2021-05-18 eeadce2d go/build/constraint: fix parsing of "// +build" (with no args)
+ 2021-05-18 6d2ef2ef cmd/compile: don't emit inltree for closure within body of inlined func
+ 2021-05-18 048cb4ce crypto/x509: remove duplicate import

Change-Id: Ib0442e3555493805f2aa1df26dfd6898df989a37