cmd/compile: don't inline runtime functions in -d=checkptr build
Runtime functions, e.g. internal/abi.NoEscape, should not be
instrumented with checkptr. But if they are inlined into a
checkptr-enabled function, they will be instrumented, and may
result in a check failure.
Let the compiler not inline runtime functions into checkptr-
enabled functions.
Also undo the change in the strings package in CL 598295, as the
compiler handles it now.
Fixes #68511.
Updates #68415.
Change-Id: I78eb380855ac9dd53c1a1a628ec0da75c3e5a1a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/599435
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@google.com>