support spmi collection for r2r calls. (#12343)

support spmi collection for r2r calls. (#12343)

* CreateAgnostic_CORINFO_SIG_INFO

Also you pSig_Index always when it is index in the buffer map,
as we do for sigInst_classInst_Index for example.

* spmi Restore_CORINFO_RESOLVED_TOKENout

delete another duplicate.

* SpmiDumpHelper

* spmi cleaning: GetFunctionEntryPoint and GetAddressOfPInvokeTarget

* support GetReadyToRunHelper and GetReadyToRunDelegateCtorHelper in spmi.

* Fix typo that annoys desktop build.

* spmi GetReadyToRunDelegateCtorHelper

* spmi: use agnostic type for GetReadyToRunDelegateCtorHelper value.

* spmi dump Agnostic_CORINFO_LOOKUP

add stubLookup to dmpGetCallInfo

* clean dmpGetMethodSig and dmpGetTailCallCopyArgsThunk