Update syn, proc-macro2 and quote to 1.x (#4028)

substrate/core/sr-api-macros/tests/ui/adding_at_parameter.rs

@@ -1,9 +0,0 @@
-use client::decl_runtime_apis;
-
-decl_runtime_apis! {
-	pub trait Api {
-		fn test(at: u64);
-	}
-}
-
-fn main() {}

substrate/core/sr-api-macros/tests/ui/adding_at_parameter.stderr

@@ -1,5 +0,0 @@
-error: `decl_runtime_apis!` adds automatically a parameter `at: &BlockId<Block>`. Please rename/remove your parameter.
- --> $DIR/adding_at_parameter.rs:5:11
-  |
-5 |         fn test(at: u64);
-  |                 ^^

substrate/core/sr-api-macros/tests/ui/adding_self_parameter.stderr

@@ -1,4 +1,4 @@
-error: Self values are not supported.
+error: `self` as argument not supported.
  --> $DIR/adding_self_parameter.rs:5:11
   |
 5 |         fn test(&self);

substrate/core/sr-api-macros/tests/ui/type_reference_in_impl_runtime_apis_call.stderr

@@ -40,3 +40,15 @@ error[E0308]: mismatched types
    |
    = note: expected type `u64`
               found type `&u64`
+
+error[E0308]: mismatched types
+  --> $DIR/type_reference_in_impl_runtime_apis_call.rs:20:11
+   |
+20 |         fn test(data: &u64) {
+   |                 ^^^^^^^
+   |                 |
+   |                 expected u64, found &u64
+   |                 help: consider removing the borrow: `data`
+   |
+   = note: expected type `u64`
+              found type `&u64`