Merge pull request rust-lang#19180 from joshrotenberg/fix-source-file-url

doc: use fully qualified url for source path

Author: Veykril

src/tools/rust-analyzer/xtask/src/codegen.rs

@@ -117,7 +117,13 @@ impl fmt::Display for Location {
         let path = self.file.strip_prefix(project_root()).unwrap().display().to_string();
         let path = path.replace('\\', "/");
         let name = self.file.file_name().unwrap();
-        write!(f, " [{}](/{}#{}) ", name.to_str().unwrap(), path, self.line)
+        write!(
+            f,
+            " [{}](https://github.com/rust-lang/rust-analyzer/blob/master/{}#{}) ",
+            name.to_str().unwrap(),
+            path,
+            self.line
+        )
     }
 }