Rollup merge of #144650 - Borgerr:additional-tce-tests, r=WaffleLapkin,tgross35

Additional tce tests

r? `@oli-obk`

Adds known-bug tests for LLVM emissions regarding indirect operands for TCE. Also includes a test, `indexer.rs`, referring to function_table behavior described by the RFC.

Depends on rust-lang/rust#144232

Closes rust-lang/rust#144293

Author: Zalathar