Fix trybuild outputs.

Author: Anders429

tests/trybuild/entities/comma_alone.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `,`
   |
 4 |     let entities = entities!(,);
   |                              ^ no rules expected this token in macro call
+  |
+note: while trying to match `(`
+ --> src/entities/mod.rs
+  |
+  |     (($component:expr $(,$components:expr)* $(,)?); $n:expr) => {
+  |      ^

tests/trybuild/entities/double_comma.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `,`
   |
 8 |     let entities = entities!((A, B),, (A, B));
   |                                     ^ no rules expected this token in macro call
+  |
+note: while trying to match `(`
+ --> src/entities/mod.rs
+  |
+  |     ($(($($components:expr),*)),+ $(,)?) => {
+  |        ^

tests/trybuild/entities/semicolon_separated.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `;`
    |
 10 |     let entities = entities!((A, B); (A, B); (A, B));
    |                                            ^ no rules expected this token in macro call
+   |
+note: while trying to match meta-variable `$n:expr`
+  --> src/entities/mod.rs
+   |
+   |     (($component:expr $(,$components:expr)* $(,)?); $n:expr) => {
+   |                                                     ^^^^^^^

tests/trybuild/entities/unexpected_token.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `+`
   |
 8 |     let entities = entities!((A, B), (A, B), + (A, B));
   |                                              ^ no rules expected this token in macro call
+  |
+note: while trying to match `(`
+ --> src/entities/mod.rs
+  |
+  |     ($(($($components:expr),*)),+ $(,)?) => {
+  |        ^

tests/trybuild/entity/comma_alone.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `,`
   |
 4 |     let entity = entity!(,);
   |                          ^ no rules expected this token in macro call
+  |
+note: while trying to match meta-variable `$component:expr`
+ --> src/entity/mod.rs
+  |
+  |     ($component:expr $(,$components:expr)* $(,)?) => {
+  |      ^^^^^^^^^^^^^^^

tests/trybuild/entity/unexpected_token.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `+`
   |
 8 |     let entity = entity!(A, + B,);
   |                             ^ no rules expected this token in macro call
+  |
+note: while trying to match meta-variable `$components:expr`
+ --> src/entity/mod.rs
+  |
+  |     ($component:expr $(,$components:expr)* $(,)?) => {
+  |                         ^^^^^^^^^^^^^^^^

tests/trybuild/registry/comma_alone.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `,`
   |
 3 | type Registry = registry!(,);
   |                           ^ no rules expected this token in macro call
+  |
+note: while trying to match meta-variable `$component:ty`
+ --> src/registry/mod.rs
+  |
+  |     ($component:ty $(,$components:ty)* $(,)?) => {
+  |      ^^^^^^^^^^^^^

tests/trybuild/registry/unexpected_token.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `+`
   |
 7 | type Registry = registry!(A, + B,);
   |                              ^ no rules expected this token in macro call
+  |
+note: while trying to match meta-variable `$components:ty`
+ --> src/registry/mod.rs
+  |
+  |     ($component:ty $(,$components:ty)* $(,)?) => {
+  |                       ^^^^^^^^^^^^^^

tests/trybuild/result/comma_alone.stderr

@@ -3,3 +3,5 @@ error: no rules expected the token `,`
   |
 4 |     let result!(,) = view::Null;
   |                 ^ no rules expected this token in macro call
+  |
+  = note: while trying to match end of macro

tests/trybuild/result/unexpected_token.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `+`
   |
 8 |     let result!(a, + b) = (A, (A, view::Null));
   |                    ^ no rules expected this token in macro call
+  |
+note: while trying to match meta-variable `$components:ident`
+ --> src/query/result/mod.rs
+  |
+  |         ($component:ident $(,$components:ident)* $(,)?) => (
+  |                              ^^^^^^^^^^^^^^^^^

tests/trybuild/schedule/comma_alone.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `,`
   |
 4 |     let schedule = schedule!(,);
   |                              ^ no rules expected this token in macro call
+  |
+note: while trying to match meta-variable `$task:expr`
+ --> src/system/schedule/mod.rs
+  |
+  |         ($task:expr $(,$tasks:expr)* $(,)?) => (
+  |          ^^^^^^^^^^

tests/trybuild/schedule/unexpected_token.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `+`
    |
 36 |     let schedule = schedule!(task::System(A), + task::System(B),);
    |                                               ^ no rules expected this token in macro call
+   |
+note: while trying to match meta-variable `$tasks:expr`
+  --> src/system/schedule/mod.rs
+   |
+   |         ($task:expr $(,$tasks:expr)* $(,)?) => (
+   |                        ^^^^^^^^^^^

tests/trybuild/views/comma_alone.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `,`
   |
 3 | type Views = views!(,);
   |                     ^ no rules expected this token in macro call
+  |
+note: while trying to match meta-variable `$view:ty`
+ --> src/query/view/mod.rs
+  |
+  |         ($view:ty $(,$views:ty)* $(,)?) => (
+  |          ^^^^^^^^

tests/trybuild/views/unexpected_token.stderr

@@ -3,3 +3,9 @@ error: no rules expected the token `+`
   |
 7 | type Views = views!(&A, + &B,);
   |                         ^ no rules expected this token in macro call
+  |
+note: while trying to match meta-variable `$views:ty`
+ --> src/query/view/mod.rs
+  |
+  |         ($view:ty $(,$views:ty)* $(,)?) => (
+  |                      ^^^^^^^^^