Pre-commit unpretty HIR test

Author: Urgau

tests/ui/unpretty/debug-fmt-hir.rs

@@ -0,0 +1,26 @@
+//@ compile-flags: -Zunpretty=hir
+//@ check-pass
+
+use std::fmt;
+
+pub struct Bar {
+    a: String,
+    b: u8,
+}
+
+impl fmt::Debug for Bar {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        debug_struct_field2_finish(f, "Bar", "a", &self.a, "b", &&self.b)
+    }
+}
+
+fn debug_struct_field2_finish<'a>(
+    name: &str,
+    name1: &str,
+    value1: &'a dyn fmt::Debug,
+    name2: &str,
+    value2: &'a dyn fmt::Debug,
+) -> fmt::Result
+{
+    loop {}
+}

tests/ui/unpretty/debug-fmt-hir.stdout

@@ -0,0 +1,25 @@
+#[prelude_import]
+use ::std::prelude::rust_2015::*;
+#[macro_use]
+extern crate std;
+//@ compile-flags: -Zunpretty=hir
+//@ check-pass
+
+use std::fmt;
+
+struct Bar {
+    a: String,
+    b: u8,
+}
+
+impl fmt::Debug for Bar {
+    fn fmt<'_, '_, '_>(self: &'_ Self, f: &'_ mut fmt::Formatter<'_>)
+        ->
+            fmt::Result {
+        debug_struct_field2_finish(f, "Bar", "a", &self.a, "b", &&self.b)
+    }
+}
+
+fn debug_struct_field2_finish<'a, '_, '_,
+    '_>(name: &'_ str, name1: &'_ str, value1: &'a dyn fmt::Debug,
+    name2: &'_ str, value2: &'a dyn fmt::Debug) -> fmt::Result { loop { } }