shift error lines by one

primitives/api/test/tests/ui/mock_advanced_block_id_by_value.stderr

@@ -1,13 +1,13 @@
 error: `BlockId` needs to be taken by reference and not by value!
   --> $DIR/mock_advanced_block_id_by_value.rs:11:1
    |
-11 | / sp_api::mock_impl_runtime_apis! {
-12 | |     impl Api<Block> for MockApi {
-13 | |         #[advanced]
-14 | |         fn test(&self, _: BlockId<Block>) -> Result<sp_core::NativeOrEncoded<()>, ApiError> {
+12 | / sp_api::mock_impl_runtime_apis! {
+13 | |     impl Api<Block> for MockApi {
+14 | |         #[advanced]
+15 | |         fn test(&self, _: BlockId<Block>) -> Result<sp_core::NativeOrEncoded<()>, ApiError> {
 ...  |
-17 | |     }
-18 | | }
+18 | |     }
+19 | | }
    | |_^
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

primitives/api/test/tests/ui/mock_advanced_missing_blockid.stderr

@@ -1,5 +1,5 @@
 error: If using the `advanced` attribute, it is required that the function takes at least one argument, the `BlockId`.
   --> $DIR/mock_advanced_missing_blockid.rs:14:3
    |
-14 |         fn test(&self) -> Result<sp_core::NativeOrEncoded<()>, ApiError> {
+15 |         fn test(&self) -> Result<sp_core::NativeOrEncoded<()>, ApiError> {
    |         ^^