Add run-rustfix for outer_expn_data

Author: phansch

tests/ui/outer_expn_data.fixed

@@ -0,0 +1,25 @@
+// run-rustfix
+
+#![deny(clippy::internal)]
+#![feature(rustc_private)]
+
+#[macro_use]
+extern crate rustc;
+use rustc::hir::Expr;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
+
+declare_lint! {
+    pub TEST_LINT,
+    Warn,
+    ""
+}
+
+declare_lint_pass!(Pass => [TEST_LINT]);
+
+impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
+    fn check_expr(&mut self, _cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr) {
+        let _ = expr.span.ctxt().outer_expn_data();
+    }
+}
+
+fn main() {}

tests/ui/outer_expn_data.rs

@@ -1,3 +1,5 @@
+// run-rustfix
+
 #![deny(clippy::internal)]
 #![feature(rustc_private)]
 

tests/ui/outer_expn_data.stderr

@@ -1,11 +1,11 @@
 error: usage of `outer_expn().expn_data()`
-  --> $DIR/outer_expn_data.rs:19:33
+  --> $DIR/outer_expn_data.rs:21:33
    |
 LL |         let _ = expr.span.ctxt().outer_expn().expn_data();
    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.outer_expn_data()`
    |
 note: lint level defined here
-  --> $DIR/outer_expn_data.rs:1:9
+  --> $DIR/outer_expn_data.rs:3:9
    |
 LL | #![deny(clippy::internal)]
    |         ^^^^^^^^^^^^^^^^