Rollup merge of #92360 - jackh726:param-heuristics-1, r=davidtwco

Some cleanups around check_argument_types Split out in ways from my rebase/continuation of #71827 Commits are mostly self-explanatory and these changes should be fairly straightforward
rust-lang · Jan 6, 2022 · fb87e7c · fb87e7c
2 parents 4d0b567 + bbb8bde
commit fb87e7c
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Showing 3 changed files with 137 additions and 108 deletions.
diff --git a/compiler/rustc_typeck/src/check/callee.rs b/compiler/rustc_typeck/src/check/callee.rs
@@ -496,7 +496,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
  call_expr.span,
  call_expr,
  fn_sig.inputs(),
- &expected_arg_tys,
+ expected_arg_tys,
  arg_exprs,
  fn_sig.c_variadic,
  TupleArgumentsFlag::DontTupleArguments,
@@ -529,7 +529,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
  call_expr.span,
  call_expr,
  fn_sig.inputs(),
- &expected_arg_tys,
+ expected_arg_tys,
  arg_exprs,
  fn_sig.c_variadic,
  TupleArgumentsFlag::TupleArguments,