Parallel frontend test failures

#153801 introduced an option to run rustc tests with parallel compiler enabled using option --parallel-frontend-threads for tests/ui.
A number of tests are failing in that mode and were marked with //@ ignore-parallel-frontend due to more or less subtle difference in output diagnostics due to non-determinism.

This is an umbrella issue for those failures.
Some of the failures will get separate dedicated issues (or preferably just PRs with fixes) that will be linked from here.

List of the failures with reasons:

reason	tests	issues	status
ICE: variances unwrap None (in query cycle)	[tests/ui/parallel-rustc/variances-cycle-ice-154560.rs]	#154560	unresolved
ICE: fn signature delayed bug (in query cycle)	[tests/ui/parallel-rustc/fn-sig-cycle-ice-154560.rs]	#154056	unresolved
different infer type: bool	[consts/const-item-no-type/in-macro.rs]	#157659	fixed
query cycle	[async-await/mutually-recursive-async-impl-trait-type.rs, consts/recursive-zst-static.rs, cycle-trait/cycle-trait-supertrait-indirect.rs, cycle-trait/issue-12511.rs, delegation/unsupported.rs, generic-associated-types/unknown-lifetime-ice-119827.rs, impl-trait/auto-trait-leakage/auto-trait-leak.rs, infinite/infinite-trait-alias-recursion.rs, infinite/infinite-type-alias-mutual-recursion.rs, issues/issue-17252.rs, issues/issue-34373.rs, pattern/non-structural-match-types-cycle-err.rs, recursion/issue-23302-3.rs, resolve/resolve-self-in-impl.rs, traits/alias/infinite_normalization.rs, wf/ice-hir-wf-check-anon-const-issue-122989.rs]	#142063	unresolved
different alloc ids	[const-generics/issues/issue-100313.rs, const-generics/min_const_generics/invalid-patterns.rs, const-ptr/forbidden_slices.rs, const-ptr/out_of_bounds_read.rs, consts/const-compare-bytes-ub.rs, consts/const-err-enum-discriminant.rs, consts/const-eval/c-variadic-fail.rs, consts/const-eval/const-pointer-values-in-various-types.rs, consts/const-eval/heap/alloc_intrinsic_uninit.rs, consts/const-eval/heap/dealloc_intrinsic_dangling.rs, consts/const-eval/heap/dealloc_intrinsic_duplicate.rs, consts/const-eval/heap/dealloc_intrinsic_incorrect_layout.rs, consts/const-eval/heap/make-global-dangling.rs, consts/const-eval/heap/make-global-other.rs, consts/const-eval/heap/make-global-twice.rs, consts/const-eval/heap/ptr_made_global_mutated.rs, consts/const-eval/issue-49296.rs, consts/const-eval/ptr_fragments_mixed.rs, consts/const-eval/raw-bytes.rs, consts/const-eval/raw-pointer-ub.rs, consts/const-eval/read_partial_ptr.rs, consts/const-eval/ub-enum-overwrite.rs, consts/const-eval/ub-enum.rs, consts/const-eval/ub-incorrect-vtable.rs, consts/const-eval/ub-nonnull.rs, consts/const-eval/ub-ref-ptr.rs, consts/const-eval/ub-upvars.rs, consts/const-eval/ub-wide-ptr.rs, consts/const-eval/union-const-eval-field.rs, consts/const-eval/union-ice.rs, consts/const-eval/union-ub.rs, consts/copy-intrinsic.rs, consts/interior-mut-const-via-union.rs, consts/issue-63952.rs, consts/issue-79690.rs, consts/miri_unleashed/static-no-inner-mut.rs, consts/missing_span_in_backtrace.rs, consts/offset_ub.rs, intrinsics/intrinsic-raw_eq-const-bad.rs, type/pattern_types/validity.rs]	#157665	fixed
queries overflow the depth limit	[consts/chained-constants-stackoverflow.rs]	#146616	not planned (#146616 (comment))
dep graph	[dep-graph/dep-graph-assoc-type-codegen.rs, dep-graph/dep-graph-caller-callee.rs, dep-graph/dep-graph-struct-signature.rs, dep-graph/dep-graph-trait-impl-two-traits-same-method.rs, dep-graph/dep-graph-trait-impl.rs, dep-graph/dep-graph-type-alias.rs, dep-graph/dep-graph-variance-alias.rs]	#157607	fixed
invalid svg(multiple threads trying to write to the same file)	[error-emitter/multiline-removal-suggestion.rs]	#157606	fixed
post-monomorphization errors	[abi/simd-abi-checks-avx.rs, consts/const-eval/index-out-of-bounds-never-type.rs, consts/const-eval/issue-50814-2.rs, consts/const-eval/issue-50814.rs, consts/mono-reachable-invalid-const.rs, consts/required-consts/collect-in-called-fn.rs, consts/required-consts/collect-in-dead-closure.rs, consts/required-consts/collect-in-dead-drop.rs, consts/required-consts/collect-in-dead-fn-behind-assoc-type.rs, consts/required-consts/collect-in-dead-fn-behind-generic.rs, consts/required-consts/collect-in-dead-fn-behind-opaque-type.rs, consts/required-consts/collect-in-dead-fn.rs, consts/required-consts/collect-in-dead-fnptr-in-const.rs, consts/required-consts/collect-in-dead-fnptr.rs, consts/required-consts/collect-in-dead-forget.rs, consts/required-consts/collect-in-dead-move.rs, consts/required-consts/collect-in-dead-vtable.rs, consts/required-consts/collect-in-promoted-const.rs, consts/required-consts/interpret-in-const-called-fn.rs, consts/required-consts/interpret-in-promoted.rs, consts/required-consts/interpret-in-static.rs, inline-const/required-const.rs, lint/large_assignments/copy_into_box_rc_arc.rs, lint/large_assignments/copy_into_fn.rs, lint/large_assignments/inline_mir.rs, lint/large_assignments/large_future.rs, lint/large_assignments/move_into_fn.rs, simd/const-err-trumps-simd-err.rs, structs/default-field-values/post-mono.rs]	#154260	fixed
unstable liveness diagnostics	[closures/2229_closure_analysis/diagnostics/liveness.rs, lint/unused/unused-assign-148960.rs, liveness/liveness-consts.rs, liveness/liveness-dead.rs, liveness/liveness-upvars.rs, liveness/unused-assignments-diverging-branch-issue-156416.rs]	#157299	fixed
pattern matching error message mismatch	[pattern/usefulness/empty-types.rs]	#157299	fixed
`note`s on different source lines	[lint/non-snake-case/lint-uppercase-variables.rs, lint/rfc-2383-lint-reason/force_warn_expected_lints_fulfilled.rs, liveness/liveness-unused.rs, rust-2018/edition-lint-inter-outlives/edition-lint-infer-outlives-macro.fixed, rust-2018/edition-lint-inter-outlives/edition-lint-infer-outlives-macro.rs]	#157299, #157300	fixed