IPE: Expose unit ID in InfoTableProv

compiler/GHC/StgToCmm/InfoTableProv.hs

libraries/base/changelog.md

libraries/ghc-internal/src/GHC/Internal/InfoProv/Types.hsc

rts/IPE.c

rts/Trace.c

rts/include/rts/IPE.h

testsuite/tests/interface-stability/base-exports.stdout

...ce-stability/base-exports.stdout-javascript-unknown-ghcjs

...ite/tests/interface-stability/base-exports.stdout-mingw32

...suite/tests/interface-stability/base-exports.stdout-ws-32

...uite/tests/profiling/should_run/staticcallstack001.stdout

...uite/tests/profiling/should_run/staticcallstack002.stdout

testsuite/tests/rts/ipe/T24005/t24005.stdout

testsuite/tests/rts/ipe/ipeEventLog.stderr

testsuite/tests/rts/ipe/ipeEventLog_fromMap.stderr

testsuite/tests/rts/ipe/ipeMap.c

testsuite/tests/rts/ipe/ipe_lib.c