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Move `--ls` behind `-Z ls`

Closes #13549
doc: Removed all definition lists as Sundown doesn't support them.

Closes #13561. Please revert this commit when Sundown (or any
replacement) gets a support for definition lists in the future.
man: Add missing options to rustc.1
rustc: Slightly reword the --no-analysis description for clarity
rustc: Don't allocate a cnum to syntax crates

Syntax-only crates are no longer registered with the cstore, so there's no need
to allocate crate numbers to them. This ends up leaving gaps in the crate
numbering scheme which is not expected in the rest of the compiler.

Closes #13560
This is a Windows specific fix in libc. According to MSDN, the GUID
structure's Data2 and Data3 members expect WORD types instead of DWORD. I
discovered this discrepancy while experimenting with some bindings to
Microsoft's OLE2 api. The discrepancy was corrupting the contents of the
string returned by UuidToString after I used known GUIDs to test the
accuracy of the function binding. I didn't add test cases because it would
mean adding a dependency to my rather incomplete binding library. However,
the fix produces expected string values when tested.
rustc: Fix omission of bytecode in staticlibs

The name of the file changed awhile back and this spot wasn't updated to
continue ignoring the bytecode from rlibs when copying into staticlibs.
auto merge of #13550 : brson/rust/man, r=alexcrichton

--no-analysis, --dep-info, -C relocation-model, remove --gen-crate-map
Give reduction-type tests in Bitv more natural names
parallelisation of shootout-k-nucleotide
Simplify implementation of Bitv::{all,none} using iter builtins.
auto merge of #13557 : FlaPer87/rust/ls-behind-z, r=brson

Closes #13549
syntax: Parses `&&` as `& &` whenever appropriate.

Closes #11227.
Guard variance inference for params bound in non-variance context.

Before adding a variance constrant for a given early-bound param,
check if it was meant to be inferred.

To support the above, added `fn is_to_be_inferred` to
`variance::ConstraintContext`.
Extended `syntax::{fold, ast_map}` to include lifetimes.

Part of this required added an override of `fold_type_method` in the
Folder for Ctx impl; it follows the same pattern as `fold_method`.

Also, as a drive-by fix, I moved all of the calls to `folder.new_id`
in syntax::fold's no-op default traversal to really be the first
statement in each function.

  * This is to uphold the invariant that `folder.new_id` is always
    called first (an unfortunate requirement of the current `ast_map`
    code), an invariant that we seemingly were breaking in e.g. the
    previous `noop_fold_block`.

  * Now it should be easier to see when adding new code that this
    invariant must be upheld.

  * (note that the breakage in `noop_fold_block` may not have mattered
    so much previously, since the only thing that blocks can bind are
    lifetimes, which I am only adding support for now.)
Drive-by: `pprust::*_to_str` for TypeMethod, Method, and FnDecl.
Regression test.
auto merge of #13563 : lifthrasiir/rust/refman-dl, r=alexcrichton

Closes #13561. All definition lists have been converted to unordered lists. This is a temporary measure; please revert this when Sundown (or any replacement) gets a support for definition lists in the future.
auto merge of #13567 : iancormac84/rust/libc_windows_guid_fix, r=alexcrichton

structure's Data2 and Data3 members expect WORD types instead of DWORD. I
discovered this discrepancy while experimenting with some bindings to
Microsoft's OLE2 api. The discrepancy was corrupting the contents of the
string returned by UuidToString after I used known GUIDs to test the
accuracy of the function binding. I didn't add test cases because it would
mean adding a dependency to my rather incomplete binding library. However,
the fix produces expected string values when tested.