fix typo

src/librustc_typeck/check/mod.rs

@@ -4182,7 +4182,7 @@ impl<'a, 'gcx, 'tcx> FnCtxt<'a, 'gcx, 'tcx> {
                                     {
                                         err.span_suggestion(
                                             *sp,
-                                            "parenthesis are required to parse this \
+                                            "parentheses are required to parse this \
                                              as an expression",
                                             format!("({})", snippet),
                                             Applicability::MachineApplicable,

src/libsyntax/parse/parser.rs

@@ -2934,7 +2934,7 @@ impl<'a> Parser<'a> {
                                 if let Ok(snippet) = self.sess.source_map().span_to_snippet(*sp) {
                                     err.span_suggestion(
                                         *sp,
-                                        "parenthesis are required to parse this as an expression",
+                                        "parentheses are required to parse this as an expression",
                                         format!("({})", snippet),
                                         Applicability::MachineApplicable,
                                     );
@@ -2979,7 +2979,7 @@ impl<'a> Parser<'a> {
                     "struct literals are not allowed here",
                 );
                 err.multipart_suggestion(
-                    "surround the struct literal with parenthesis",
+                    "surround the struct literal with parentheses",
                     vec![
                         (lo.shrink_to_lo(), "(".to_string()),
                         (expr.span.shrink_to_hi(), ")".to_string()),
@@ -3661,7 +3661,7 @@ impl<'a> Parser<'a> {
                     .unwrap_or_else(|_| pprust::expr_to_string(&lhs));
                 err.span_suggestion(
                     lhs.span,
-                    "parenthesis are required to parse this as an expression",
+                    "parentheses are required to parse this as an expression",
                     format!("({})", snippet),
                     Applicability::MachineApplicable,
                 );
@@ -4982,7 +4982,7 @@ impl<'a> Parser<'a> {
                             if let Ok(snippet) = self.sess.source_map().span_to_snippet(*sp) {
                                 err.span_suggestion(
                                     *sp,
-                                    "parenthesis are required to parse this as an expression",
+                                    "parentheses are required to parse this as an expression",
                                     format!("({})", snippet),
                                     Applicability::MachineApplicable,
                                 );

src/test/ui/error-codes/E0423.stderr

@@ -3,7 +3,7 @@ error: struct literals are not allowed here
    |
 LL |     if let S { x: _x, y: 2 } = S { x: 1, y: 2 } { println!("Ok"); }
    |                                ^^^^^^^^^^^^^^^^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     if let S { x: _x, y: 2 } = (S { x: 1, y: 2 }) { println!("Ok"); }
    |                                ^                ^
@@ -19,7 +19,7 @@ error: struct literals are not allowed here
    |
 LL |     for _ in std::ops::Range { start: 0, end: 10 } {}
    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     for _ in (std::ops::Range { start: 0, end: 10 }) {}
    |              ^                                     ^

src/test/ui/parser/expr-as-stmt.stderr

@@ -4,7 +4,7 @@ error: expected expression, found `+`
 LL |     {2} + {2}
    |     --- ^ expected expression
    |     |
-   |     help: parenthesis are required to parse this as an expression: `({2})`
+   |     help: parentheses are required to parse this as an expression: `({2})`
 
 error: expected expression, found `+`
   --> $DIR/expr-as-stmt.rs:12:9
@@ -12,7 +12,7 @@ error: expected expression, found `+`
 LL |     {2} + 2
    |     --- ^ expected expression
    |     |
-   |     help: parenthesis are required to parse this as an expression: `({2})`
+   |     help: parentheses are required to parse this as an expression: `({2})`
 
 error: expected expression, found `+`
   --> $DIR/expr-as-stmt.rs:18:12
@@ -20,13 +20,13 @@ error: expected expression, found `+`
 LL |     { 42 } + foo;
    |     ------ ^ expected expression
    |     |
-   |     help: parenthesis are required to parse this as an expression: `({ 42 })`
+   |     help: parentheses are required to parse this as an expression: `({ 42 })`
 
 error: expected expression, found `&&`
   --> $DIR/expr-as-stmt.rs:30:5
    |
 LL |     if let Some(x) = a { true } else { false }
-   |     ------------------------------------------ help: parenthesis are required to parse this as an expression: `(if let Some(x) = a { true } else { false })`
+   |     ------------------------------------------ help: parentheses are required to parse this as an expression: `(if let Some(x) = a { true } else { false })`
 LL |     &&
    |     ^^ expected expression
 
@@ -35,7 +35,7 @@ error: expected expression, found `>`
    |
 LL |     } > 0
    |       ^ expected expression
-help: parenthesis are required to parse this as an expression
+help: parentheses are required to parse this as an expression
    |
 LL |     (match x {
 LL |         _ => 1,
@@ -84,7 +84,7 @@ error[E0614]: type `{integer}` cannot be dereferenced
 LL |     { 3 } * 3
    |     ----- ^^^
    |     |
-   |     help: parenthesis are required to parse this as an expression: `({ 3 })`
+   |     help: parentheses are required to parse this as an expression: `({ 3 })`
 
 error: aborting due to 10 previous errors
 

src/test/ui/parser/match-arrows-block-then-binop.stderr

@@ -3,7 +3,7 @@ error: expected pattern, found `+`
    |
 LL |       } + 5
    |         ^ expected pattern
-help: parenthesis are required to parse this as an expression
+help: parentheses are required to parse this as an expression
    |
 LL |       0 => ({
 LL |         0

src/test/ui/parser/struct-literal-in-for.stderr

@@ -6,7 +6,7 @@ LL |       for x in Foo {
 LL | |         x: 3
 LL | |     }.hi() {
    | |_____^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     for x in (Foo {
 LL |         x: 3

src/test/ui/parser/struct-literal-in-if.stderr

@@ -6,7 +6,7 @@ LL |       if Foo {
 LL | |         x: 3
 LL | |     }.hi() {
    | |_____^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     if (Foo {
 LL |         x: 3

src/test/ui/parser/struct-literal-in-match-discriminant.stderr

@@ -6,7 +6,7 @@ LL |       match Foo {
 LL | |         x: 3
 LL | |     } {
    | |_____^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     match (Foo {
 LL |         x: 3

src/test/ui/parser/struct-literal-in-while.stderr

@@ -6,7 +6,7 @@ LL |       while Foo {
 LL | |         x: 3
 LL | |     }.hi() {
    | |_____^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     while (Foo {
 LL |         x: 3

src/test/ui/parser/struct-literal-restrictions-in-lamda.stderr

@@ -6,7 +6,7 @@ LL |       while || Foo {
 LL | |         x: 3
 LL | |     }.hi() {
    | |_____^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     while || (Foo {
 LL |         x: 3

src/test/ui/struct-literal-variant-in-if.stderr

@@ -3,7 +3,7 @@ error: struct literals are not allowed here
    |
 LL |     if x == E::I { field1: true, field2: 42 } {}
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     if x == (E::I { field1: true, field2: 42 }) {}
    |             ^                                 ^
@@ -13,7 +13,7 @@ error: struct literals are not allowed here
    |
 LL |     if x == E::V { field: false } {}
    |             ^^^^^^^^^^^^^^^^^^^^^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     if x == (E::V { field: false }) {}
    |             ^                     ^
@@ -23,7 +23,7 @@ error: struct literals are not allowed here
    |
 LL |     if x == E::J { field: -42 } {}
    |             ^^^^^^^^^^^^^^^^^^^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     if x == (E::J { field: -42 }) {}
    |             ^                   ^
@@ -33,7 +33,7 @@ error: struct literals are not allowed here
    |
 LL |     if x == E::K { field: "" } {}
    |             ^^^^^^^^^^^^^^^^^^
-help: surround the struct literal with parenthesis
+help: surround the struct literal with parentheses
    |
 LL |     if x == (E::K { field: "" }) {}
    |             ^                  ^