Auto merge of #52088 - kennytm:rollup, r=kennytm

Rollup of 14 pull requests

Successful merges:

 - #51619 (rust: add initial changes to support powerpc64le musl)
 - #51793 (Fix variant background color on hover in search results)
 - #52005 (Update LLVM to bring in a wasm codegen fix)
 - #52016 (Deduplicate error reports for statics)
 - #52019 ([cross-lang-lto] Allow the linker to choose the LTO-plugin (which is useful when using LLD))
 - #52030 (Any docs preposition change)
 - #52031 (Strenghten synchronization in `Arc::is_unique`)
 - #52033 ([Gardening] Update outdated comments: ByVal -> Scalar)
 - #52055 (Include VS 2017 in error message.)
 - #52063 (Add a link to the rustc docs)
 - #52073 (Add a punch card to weird expressions test)
 - #52080 (Improve dependency deduplication diagnostics)
 - #52093 (rustc: Update tracking issue for wasm_import_module)
 - #52096 (Fix typo in cell.rs)

Failed merges:

src/test/compile-fail/issue-14227.rs

@@ -16,7 +16,5 @@ extern {
 static CRASH: () = symbol;
 //~^ ERROR could not evaluate static initializer
 //~| tried to read from foreign (extern) static
-//~^^^ ERROR could not evaluate static initializer
-//~| tried to read from foreign (extern) static
 
 fn main() {}

src/test/compile-fail/issue-28324.rs

@@ -17,7 +17,5 @@ extern {
 pub static BAZ: u32 = *&error_message_count;
 //~^ ERROR could not evaluate static initializer
 //~| tried to read from foreign (extern) static
-//~^^^ ERROR could not evaluate static initializer
-//~| tried to read from foreign (extern) static
 
 fn main() {}

src/test/run-pass/weird-exprs.rs

@@ -10,6 +10,8 @@
 
 // compile-flags: -Z borrowck=compare
 
+#![recursion_limit = "128"]
+
 use std::cell::Cell;
 use std::mem::swap;
 
@@ -121,6 +123,16 @@ fn special_characters() {
     assert!(!val);
 }
 
+fn punch_card() -> impl std::fmt::Debug {
+    ..=..=.. ..    .. .. .. ..    .. .. .. ..    .. ..=.. ..
+    ..=.. ..=..    .. .. .. ..    .. .. .. ..    ..=..=..=..
+    ..=.. ..=..    ..=.. ..=..    .. ..=..=..    .. ..=.. ..
+    ..=..=.. ..    ..=.. ..=..    ..=.. .. ..    .. ..=.. ..
+    ..=.. ..=..    ..=.. ..=..    .. ..=.. ..    .. ..=.. ..
+    ..=.. ..=..    ..=.. ..=..    .. .. ..=..    .. ..=.. ..
+    ..=.. ..=..    .. ..=..=..    ..=..=.. ..    .. ..=.. ..
+}
+
 pub fn main() {
     strange();
     funny();
@@ -135,4 +147,5 @@ pub fn main() {
     fishy();
     union();
     special_characters();
+    punch_card();
 }

src/test/ui/const-eval/index_out_of_bounds.rs

@@ -10,7 +10,6 @@
 
 static FOO: i32 = [][0];
 //~^ ERROR E0080
-//~| ERROR E0080
 
 fn main() {
     let array = [std::env::args().len()];

src/test/ui/const-eval/index_out_of_bounds.stderr

@@ -4,22 +4,14 @@ error[E0080]: could not evaluate static initializer
 LL | static FOO: i32 = [][0];
    |                   ^^^^^ index out of bounds: the len is 0 but the index is 0
 
-error[E0080]: could not evaluate static initializer
-  --> $DIR/index_out_of_bounds.rs:11:1
-   |
-LL | static FOO: i32 = [][0];
-   | ^^^^^^^^^^^^^^^^^^-----^
-   |                   |
-   |                   index out of bounds: the len is 0 but the index is 0
-
 error: index out of bounds: the len is 1 but the index is 1
-  --> $DIR/index_out_of_bounds.rs:17:5
+  --> $DIR/index_out_of_bounds.rs:16:5
    |
 LL |     array[1]; //~ ERROR index out of bounds
    |     ^^^^^^^^
    |
    = note: #[deny(const_err)] on by default
 
-error: aborting due to 3 previous errors
+error: aborting due to 2 previous errors
 
 For more information about this error, try `rustc --explain E0080`.

src/test/ui/feature-gate-wasm_import_module.stderr

@@ -1,4 +1,4 @@
-error[E0658]: experimental attribute (see issue #51088)
+error[E0658]: experimental attribute (see issue #52090)
   --> $DIR/feature-gate-wasm_import_module.rs:11:1
    |
 LL | #[wasm_import_module = "test"] //~ ERROR: experimental