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Rollup merge of #156184 - cyrgani:macros-are-weird, r=petrochenkov
Revert "remove `MethodReceiverExpr` special-casing"
This reverts commit 5ad560f7ec96bd42f003abe9842abe6e5643817e and adds a regression test.
Fixes rust-lang/rust#156084.
r? @petrochenkov
