[release-branch.go1.18] all: merge master (acc5f55b) into release-branch.go1.18

Merge List:

+ 2022-02-28 acc5f55b cmd/go: make work and work_edit script tests version-independent
+ 2022-02-28 f04d5c11 cmd/internal/obj/riscv/testdata/testbranch: add //go:build lines
+ 2022-02-28 9fe3676b all: fix typos
+ 2022-02-28 f9285818 go/types, types2: fix string to type parameter conversions
+ 2022-02-28 eb8198d2 cmd/compile: deal with constructed types that have shapes in them
+ 2022-02-28 b33592dc spec: the -'s possessive suffix is English, not code
+ 2022-02-28 57e38098 runtime: avoid cgo_unsafe_args for syscall.syscall functions on darwin/arm64
+ 2022-02-28 06a43e4a cmd/compile: fix case for structural types where we should be looking at typeparams
+ 2022-02-28 0907d57a cmd/compile: emit types of constants which are instantiated generic types
+ 2022-02-28 9c4a8620 CONTRIBUTORS: update for the Go 1.18 release
+ 2022-02-28 57dda979 test: add new test case for 51219 that triggers the types2 issue
+ 2022-02-26 a064a4f2 cmd/compile: ensure dictionary assignment statements are defining statements
+ 2022-02-26 286e3e61 go/types, types2: report an error for x.sel where x is a built-in
+ 2022-02-25 01e522a9 go/types,types2: revert documentation for Type.Underlying
+ 2022-02-25 26999cfd runtime/internal/atomic: set SP delta correctly for 64-bit atomic functions on ARM
+ 2022-02-25 7c694fba go/types, types2: delay receiver type validation
+ 2022-02-25 55e5b03c doc/go1.18: note changes to automatic go.mod and go.sum updates
+ 2022-02-25 6d810241 doc/go1.18: document minimum Linux kernel version
+ 2022-02-25 b8b31963 doc/go1.18: document method set limitation for method selectors
+ 2022-02-24 c0840a7c go/types, types2: method recv type parameter count must match base type parameter count
+ 2022-02-24 c15527f0 go/types, types2: implement adjCoreType using TypeParam.is
+ 2022-02-24 5a9fc946 cmd/go: avoid +incompatible major versions if a go.mod file exists in a subdirectory for that version
+ 2022-02-24 4edefe95 cmd/compile: delay all call transforms if in a generic function
+ 2022-02-24 8c5904f1 doc/go1.18: mention runtime/pprof improvements
+ 2022-02-24 b2dfec10 doc/go1.18: fix typo in AMD64 port section
+ 2022-02-24 78e99761 go/types, types2: don't crash if comp. literal element type has no core type
+ 2022-02-23 e94f7df9 go/types, types2: generalize cleanup phase after type checking
+ 2022-02-23 163da6fe go/types, types2: add "dynamic" flag to comparable predicate
+ 2022-02-23 e534907f go/types: delete unnecessary slice construction
+ 2022-02-23 d0c3b011 doc/go1.18: drop misplaced period
+ 2022-02-22 35170365 net: document methods of Buffers
+ 2022-02-22 31406256 doc/go1.18: correct "go build -asan" HTML tag
+ 2022-02-22 d17b65ff crypto/x509, runtime: fix occasional spurious “certificate is expired”
+ 2022-02-21 c9fe126c doc/go1.18: fix a few small typos, add a few commas
+ 2022-02-20 851ecea4 encoding/xml: embedded reference to substruct causes XML marshaller to panic on encoding
+ 2022-02-19 0261fa61 testdata: fix typo in comment
+ 2022-02-19 903e7cc6 doc/go1.18: fix grammar error
+ 2022-02-19 e002cf4d strings: fix typo in comment
+ 2022-02-18 61b5c866 doc/go1.18: document Go 1.17 bootstrap and //go:build fix
+ 2022-02-18 d27248c5 runtime: save some stack space for racecall on ARM64
+ 2022-02-18 d93cc8cb runtime: define racefuncenter and racefuncexit as ABIInternal
+ 2022-02-18 20b17726 reflect: call ABIInternal moveMakeFuncArgPtrs on ARM64
+ 2022-02-18 d35ed094 cmd/compile: fix importers to deal with recursion through type constraints
+ 2022-02-16 eaf04050 os: eliminate arbitrary sleep in Kill tests

Change-Id: I74352b70d97c6fd4a45aee4e222160ea2a7854ae