Improve parsing error for static and const

Example
---
```rust
static C<i32>: u32 = 0;
```
->
```diff
-error 8: missing type for `const` or `static`
+error 8: `static` may not have generic parameters
```

---

```rust
const C = 0;
```
->
```diff
-error 7: missing type for `const` or `static`
+error 7: missing type for `const`
```

---

```rust
static C = 0;
```
->
```diff
-error 8: missing type for `const` or `static`
+error 8: missing type for `static`
```

crates/parser/test_data/generated/runner.rs

@@ -824,10 +824,18 @@ mod err {
         run_and_expect_errors("test_data/parser/inline/err/misplaced_label_err.rs");
     }
     #[test]
+    fn missing_const_type() {
+        run_and_expect_errors("test_data/parser/inline/err/missing_const_type.rs");
+    }
+    #[test]
     fn missing_fn_param_type() {
         run_and_expect_errors("test_data/parser/inline/err/missing_fn_param_type.rs");
     }
     #[test]
+    fn missing_static_type() {
+        run_and_expect_errors("test_data/parser/inline/err/missing_static_type.rs");
+    }
+    #[test]
     fn path_item_without_excl() {
         run_and_expect_errors("test_data/parser/inline/err/path_item_without_excl.rs");
     }