[PATCH, CHKP] Don't require IPA_REF_CHKP reference for nodes other than instrumentation thunks

Hi, This patch is to resolve missing IPA_REF_CHKP issues. When node has instrumented version it usually has no body (either originally or was tranfromed into instrumentation thunk). But in some cases we don't instrument function and instrumentation clone becomes a thunk instead. In this

Fwd: [PATCH, CHKP] Don't require IPA_REF_CHKP reference for nodes other than instrumentation thunks

Hi, This patch is to resolve missing IPA_REF_CHKP issues. When node has instrumented version it usually has no body (either originally or was tranfromed into instrumentation thunk). But in some cases we don't instrument function and instrumentation clone becomes a thunk instead. In this case we