[dev.typeparams] all: merge master (798ec73) into dev.typeparams

Merge List:

+ 2021-07-22 798ec73519 runtime: don't clear timerModifiedEarliest if adjustTimers is 0
+ 2021-07-22 fdb45acd1f runtime: move mem profile sampling into m-acquired section
+ 2021-07-21 3e48c0381f reflect: add missing copyright header
+ 2021-07-21 48c88f1b1b reflect: add Value.CanConvert
+ 2021-07-20 9e26569293 cmd/go: don't add C compiler ID to hash for standard library
+ 2021-07-20 d568e6e075 runtime/debug: skip TestPanicOnFault on netbsd/arm

Change-Id: I87e1cd4614bb3b00807f18dfdd02664dcaecaebd

diff --cc src/cmd/go/go_test.go
Simple merge

diff --cc src/reflect/all_test.go
Simple merge

diff --cc src/reflect/value.go
Simple merge

diff --cc src/runtime/malloc.go
Simple merge

diff --cc src/runtime/runtime2.go
Simple merge

diff --cc src/runtime/time.go
Simple merge