Rollup merge of #89963 - r00ster91:parenthesisparentheses, r=nagisa

Some "parenthesis" and "parentheses" fixes

"Parenthesis" is the singular (e.g. one `(` or one `)`) and "parentheses" is the plural (multiple `(` or `)`s) and this is not hard to mix up so here are some fixes for that.

Inspired by #89958

11 files changed, 73 insertions, 73 deletions

diff --git a/src/test/ui/empty/empty-struct-unit-expr.stderr b/src/test/ui/empty/empty-struct-unit-expr.stderr
index 1023950639a..26bfc4355fa 100644
--- a/src/test/ui/empty/empty-struct-unit-expr.stderr
+++ b/src/test/ui/empty/empty-struct-unit-expr.stderr
@@ -20,7 +20,7 @@ LL |     let e4 = E::Empty4();
    |              |
    |              call expression requires function
    |
-help: `E::Empty4` is a unit variant, you need to write it without the parenthesis
+help: `E::Empty4` is a unit variant, you need to write it without the parentheses
    |
 LL |     let e4 = E::Empty4;
    |              ~~~~~~~~~
@@ -41,7 +41,7 @@ LL |     let xe4 = XE::XEmpty4();
    |               |
    |               call expression requires function
    |
-help: `XE::XEmpty4` is a unit variant, you need to write it without the parenthesis
+help: `XE::XEmpty4` is a unit variant, you need to write it without the parentheses
    |
 LL |     let xe4 = XE::XEmpty4;
    |               ~~~~~~~~~~~
diff --git a/src/test/ui/error-codes/E0618.stderr b/src/test/ui/error-codes/E0618.stderr
index 19a1a8e20cc..db1b3f09837 100644
--- a/src/test/ui/error-codes/E0618.stderr
+++ b/src/test/ui/error-codes/E0618.stderr
@@ -9,7 +9,7 @@ LL |     X::Entry();
    |     |
    |     call expression requires function
    |
-help: `X::Entry` is a unit variant, you need to write it without the parenthesis
+help: `X::Entry` is a unit variant, you need to write it without the parentheses
    |
 LL |     X::Entry;
    |     ~~~~~~~~
diff --git a/src/test/ui/let-else/let-else-bool-binop-init.stderr b/src/test/ui/let-else/let-else-bool-binop-init.stderr
index 6551e24cc83..edee6576244 100644
--- a/src/test/ui/let-else/let-else-bool-binop-init.stderr
+++ b/src/test/ui/let-else/let-else-bool-binop-init.stderr
@@ -4,7 +4,7 @@ error: a `&&` expression cannot be directly assigned in `let...else`
 LL |     let true = true && false else { return };
    |                ^^^^^^^^^^^^^
    |
-help: wrap the expression in parenthesis
+help: wrap the expression in parentheses
    |
 LL |     let true = (true && false) else { return };
    |                +             +
@@ -15,7 +15,7 @@ error: a `||` expression cannot be directly assigned in `let...else`
 LL |     let true = true || false else { return };
    |                ^^^^^^^^^^^^^
    |
-help: wrap the expression in parenthesis
+help: wrap the expression in parentheses
    |
 LL |     let true = (true || false) else { return };
    |                +             +
diff --git a/src/test/ui/let-else/let-else-brace-before-else.stderr b/src/test/ui/let-else/let-else-brace-before-else.stderr
index eac029c848b..51051bbd4d8 100644
--- a/src/test/ui/let-else/let-else-brace-before-else.stderr
+++ b/src/test/ui/let-else/let-else-brace-before-else.stderr
@@ -4,7 +4,7 @@ error: right curly brace `}` before `else` in a `let...else` statement not allow
 LL |     let Some(1) = { Some(1) } else {
    |                             ^
    |
-help: try wrapping the expression in parenthesis
+help: try wrapping the expression in parentheses
    |
 LL |     let Some(1) = ({ Some(1) }) else {
    |                   +           +
@@ -15,7 +15,7 @@ error: right curly brace `}` before `else` in a `let...else` statement not allow
 LL |     let Some(1) = loop { break Some(1) } else {
    |                                        ^
    |
-help: try wrapping the expression in parenthesis
+help: try wrapping the expression in parentheses
    |
 LL |     let Some(1) = (loop { break Some(1) }) else {
    |                   +                      +
@@ -26,7 +26,7 @@ error: right curly brace `}` before `else` in a `let...else` statement not allow
 LL |     let 2 = 1 + match 1 { n => n } else {
    |                                  ^
    |
-help: try wrapping the expression in parenthesis
+help: try wrapping the expression in parentheses
    |
 LL |     let 2 = 1 + (match 1 { n => n }) else {
    |                 +                  +
@@ -37,7 +37,7 @@ error: right curly brace `}` before `else` in a `let...else` statement not allow
 LL |     let Some(1) = unsafe { unsafe_fn() } else {
    |                                        ^
    |
-help: try wrapping the expression in parenthesis
+help: try wrapping the expression in parentheses
    |
 LL |     let Some(1) = (unsafe { unsafe_fn() }) else {
    |                   +                      +
diff --git a/src/test/ui/parser/recover-for-loop-parens-around-head.rs b/src/test/ui/parser/recover-for-loop-parens-around-head.rs
index 8080dbc332a..053b428bd12 100644
--- a/src/test/ui/parser/recover-for-loop-parens-around-head.rs
+++ b/src/test/ui/parser/recover-for-loop-parens-around-head.rs
@@ -9,7 +9,7 @@ fn main() {
 
     for ( elem in vec ) {
         //~^ ERROR expected one of `)`, `,`, `@`, or `|`, found keyword `in`
-        //~| ERROR unexpected parenthesis surrounding `for` loop head
+        //~| ERROR unexpected parentheses surrounding `for` loop head
         const RECOVERY_WITNESS: () = 0; //~ ERROR mismatched types
     }
 }
diff --git a/src/test/ui/parser/recover-for-loop-parens-around-head.stderr b/src/test/ui/parser/recover-for-loop-parens-around-head.stderr
index 21991348327..fa55970dbd1 100644
--- a/src/test/ui/parser/recover-for-loop-parens-around-head.stderr
+++ b/src/test/ui/parser/recover-for-loop-parens-around-head.stderr
@@ -4,13 +4,13 @@ error: expected one of `)`, `,`, `@`, or `|`, found keyword `in`
 LL |     for ( elem in vec ) {
    |                ^^ expected one of `)`, `,`, `@`, or `|`
 
-error: unexpected parenthesis surrounding `for` loop head
+error: unexpected parentheses surrounding `for` loop head
   --> $DIR/recover-for-loop-parens-around-head.rs:10:9
    |
 LL |     for ( elem in vec ) {
    |         ^             ^
    |
-help: remove parenthesis in `for` loop
+help: remove parentheses in `for` loop
    |
 LL -     for ( elem in vec ) {
 LL +     for  elem in vec  {
diff --git a/src/test/ui/pattern/issue-67037-pat-tup-scrut-ty-diff-less-fields.rs b/src/test/ui/pattern/issue-67037-pat-tup-scrut-ty-diff-less-fields.rs
index a3023ee906d..ae28c140375 100644
--- a/src/test/ui/pattern/issue-67037-pat-tup-scrut-ty-diff-less-fields.rs
+++ b/src/test/ui/pattern/issue-67037-pat-tup-scrut-ty-diff-less-fields.rs
@@ -5,7 +5,7 @@
 // the tuple struct pattern, has 0 fields, but requires 1 field.
 //
 // In emitting E0023, we try to see if this is a case of e.g., `Some(a, b, c)` but where
-// the scrutinee was of type `Some((a, b, c))`, and suggest that parenthesis be added.
+// the scrutinee was of type `Some((a, b, c))`, and suggest that parentheses be added.
 //
 // However, we did not account for the expected type being different than the tuple pattern type.
 // This caused an issue when the tuple pattern type (`P<T>`) was generic.
diff --git a/src/test/ui/resolve/privacy-enum-ctor.stderr b/src/test/ui/resolve/privacy-enum-ctor.stderr
index ff72b0b563a..06c52befd52 100644
--- a/src/test/ui/resolve/privacy-enum-ctor.stderr
+++ b/src/test/ui/resolve/privacy-enum-ctor.stderr
@@ -338,7 +338,7 @@ LL |         let _ = Z::Unit();
    |                 |
    |                 call expression requires function
    |
-help: `Z::Unit` is a unit variant, you need to write it without the parenthesis
+help: `Z::Unit` is a unit variant, you need to write it without the parentheses
    |
 LL |         let _ = Z::Unit;
    |                 ~~~~~~~
@@ -372,7 +372,7 @@ LL |     let _: E = m::E::Unit();
    |                |
    |                call expression requires function
    |
-help: `m::E::Unit` is a unit variant, you need to write it without the parenthesis
+help: `m::E::Unit` is a unit variant, you need to write it without the parentheses
    |
 LL |     let _: E = m::E::Unit;
    |                ~~~~~~~~~~
@@ -406,7 +406,7 @@ LL |     let _: E = E::Unit();
    |                |
    |                call expression requires function
    |
-help: `E::Unit` is a unit variant, you need to write it without the parenthesis
+help: `E::Unit` is a unit variant, you need to write it without the parentheses
    |
 LL |     let _: E = E::Unit;
    |                ~~~~~~~
diff --git a/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr b/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr
index 5ec4352919e..513b473c4de 100644
--- a/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr
+++ b/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr
@@ -16,7 +16,7 @@ LL |     if &let 0 = 0 {}
    |         ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:33:9
@@ -25,7 +25,7 @@ LL |     if !let 0 = 0 {}
    |         ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:34:9
@@ -34,7 +34,7 @@ LL |     if *let 0 = 0 {}
    |         ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:36:9
@@ -43,7 +43,7 @@ LL |     if -let 0 = 0 {}
    |         ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:44:9
@@ -52,7 +52,7 @@ LL |     if (let 0 = 0)? {}
    |         ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:48:16
@@ -61,7 +61,7 @@ LL |     if true || let 0 = 0 {}
    |                ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:49:17
@@ -70,7 +70,7 @@ LL |     if (true || let 0 = 0) {}
    |                 ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:50:25
@@ -79,7 +79,7 @@ LL |     if true && (true || let 0 = 0) {}
    |                         ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:51:25
@@ -88,7 +88,7 @@ LL |     if true || (true && let 0 = 0) {}
    |                         ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:54:12
@@ -97,7 +97,7 @@ LL |     if x = let 0 = 0 {}
    |            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:57:15
@@ -106,7 +106,7 @@ LL |     if true..(let 0 = 0) {}
    |               ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:59:11
@@ -115,7 +115,7 @@ LL |     if ..(let 0 = 0) {}
    |           ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:61:9
@@ -124,7 +124,7 @@ LL |     if (let 0 = 0).. {}
    |         ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:65:8
@@ -133,7 +133,7 @@ LL |     if let Range { start: _, end: _ } = true..true && false {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:69:8
@@ -142,7 +142,7 @@ LL |     if let Range { start: _, end: _ } = true..true || false {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:76:8
@@ -151,7 +151,7 @@ LL |     if let Range { start: F, end } = F..|| true {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:84:8
@@ -160,7 +160,7 @@ LL |     if let Range { start: true, end } = t..&&false {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:90:19
@@ -169,7 +169,7 @@ LL |     if let true = let true = true {}
    |                   ^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:94:12
@@ -178,7 +178,7 @@ LL |     while &let 0 = 0 {}
    |            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:97:12
@@ -187,7 +187,7 @@ LL |     while !let 0 = 0 {}
    |            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:98:12
@@ -196,7 +196,7 @@ LL |     while *let 0 = 0 {}
    |            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:100:12
@@ -205,7 +205,7 @@ LL |     while -let 0 = 0 {}
    |            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:108:12
@@ -214,7 +214,7 @@ LL |     while (let 0 = 0)? {}
    |            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:112:19
@@ -223,7 +223,7 @@ LL |     while true || let 0 = 0 {}
    |                   ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:113:20
@@ -232,7 +232,7 @@ LL |     while (true || let 0 = 0) {}
    |                    ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:114:28
@@ -241,7 +241,7 @@ LL |     while true && (true || let 0 = 0) {}
    |                            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:115:28
@@ -250,7 +250,7 @@ LL |     while true || (true && let 0 = 0) {}
    |                            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:118:15
@@ -259,7 +259,7 @@ LL |     while x = let 0 = 0 {}
    |               ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:121:18
@@ -268,7 +268,7 @@ LL |     while true..(let 0 = 0) {}
    |                  ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:123:14
@@ -277,7 +277,7 @@ LL |     while ..(let 0 = 0) {}
    |              ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:125:12
@@ -286,7 +286,7 @@ LL |     while (let 0 = 0).. {}
    |            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:129:11
@@ -295,7 +295,7 @@ LL |     while let Range { start: _, end: _ } = true..true && false {}
    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:133:11
@@ -304,7 +304,7 @@ LL |     while let Range { start: _, end: _ } = true..true || false {}
    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:140:11
@@ -313,7 +313,7 @@ LL |     while let Range { start: F, end } = F..|| true {}
    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:148:11
@@ -322,7 +322,7 @@ LL |     while let Range { start: true, end } = t..&&false {}
    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:154:22
@@ -331,7 +331,7 @@ LL |     while let true = let true = true {}
    |                      ^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:168:6
@@ -340,7 +340,7 @@ LL |     &let 0 = 0;
    |      ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:170:6
@@ -349,7 +349,7 @@ LL |     !let 0 = 0;
    |      ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:171:6
@@ -358,7 +358,7 @@ LL |     *let 0 = 0;
    |      ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:173:6
@@ -367,7 +367,7 @@ LL |     -let 0 = 0;
    |      ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:181:6
@@ -376,7 +376,7 @@ LL |     (let 0 = 0)?;
    |      ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:185:13
@@ -385,7 +385,7 @@ LL |     true || let 0 = 0;
    |             ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:186:14
@@ -394,7 +394,7 @@ LL |     (true || let 0 = 0);
    |              ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:187:22
@@ -403,7 +403,7 @@ LL |     true && (true || let 0 = 0);
    |                      ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:190:9
@@ -412,7 +412,7 @@ LL |     x = let 0 = 0;
    |         ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:192:12
@@ -421,7 +421,7 @@ LL |     true..(let 0 = 0);
    |            ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:193:8
@@ -430,7 +430,7 @@ LL |     ..(let 0 = 0);
    |        ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:194:6
@@ -439,7 +439,7 @@ LL |     (let 0 = 0)..;
    |      ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:196:6
@@ -448,7 +448,7 @@ LL |     (let Range { start: _, end: _ } = true..true || false);
    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:200:6
@@ -457,7 +457,7 @@ LL |     (let true = let true = true);
    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:204:6
@@ -466,7 +466,7 @@ LL |     &let 0 = 0
    |      ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:215:17
@@ -475,7 +475,7 @@ LL |         true && let 1 = 1
    |                 ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:219:17
@@ -484,7 +484,7 @@ LL |         true && let 1 = 1
    |                 ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:223:17
@@ -493,7 +493,7 @@ LL |         true && let 1 = 1
    |                 ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 error: `let` expressions are not supported here
   --> $DIR/disallowed-positions.rs:233:17
@@ -502,7 +502,7 @@ LL |         true && let 1 = 1
    |                 ^^^^^^^^^
    |
    = note: only supported directly in conditions of `if`- and `while`-expressions
-   = note: as well as when nested within `&&` and parenthesis in those conditions
+   = note: as well as when nested within `&&` and parentheses in those conditions
 
 warning: the feature `let_chains` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/disallowed-positions.rs:20:12
diff --git a/src/test/ui/suggestions/suggest-on-bare-closure-call.stderr b/src/test/ui/suggestions/suggest-on-bare-closure-call.stderr
index 0c91e2feed3..81f2e498fe5 100644
--- a/src/test/ui/suggestions/suggest-on-bare-closure-call.stderr
+++ b/src/test/ui/suggestions/suggest-on-bare-closure-call.stderr
@@ -6,7 +6,7 @@ LL |     let _ = ||{}();
    |               |
    |               call expression requires function
    |
-help: if you meant to create this closure and immediately call it, surround the closure with parenthesis
+help: if you meant to create this closure and immediately call it, surround the closure with parentheses
    |
 LL |     let _ = (||{})();
    |             +    +
diff --git a/src/test/ui/type-alias-enum-variants/incorrect-variant-form-through-alias-caught.stderr b/src/test/ui/type-alias-enum-variants/incorrect-variant-form-through-alias-caught.stderr
index 2e12b768f70..e918551020c 100644
--- a/src/test/ui/type-alias-enum-variants/incorrect-variant-form-through-alias-caught.stderr
+++ b/src/test/ui/type-alias-enum-variants/incorrect-variant-form-through-alias-caught.stderr
@@ -27,7 +27,7 @@ LL |     Alias::Unit();
    |     |
    |     call expression requires function
    |
-help: `Alias::Unit` is a unit variant, you need to write it without the parenthesis
+help: `Alias::Unit` is a unit variant, you need to write it without the parentheses
    |
 LL |     Alias::Unit;
    |     ~~~~~~~~~~~