auto merge of #12055 : dguenther/rust/tidy_test, r=alexcrichton

This PR extends the tidy formatting check to rust files in the test folder. To facilitate this, a few flags were added to tidy:

* `xfail-tidy-cr` - Disables the check for CR characters for all following lines in the file
* `xfail-tidy-tab` - Disables the check for tab characters for all following lines in the file
* `xfail-tidy-linelength` - Disables the line length check for all following lines in the file

Checks should not have to be disabled often. I disabled line length checks in `debug-info` tests that use `debugger:` checks, but aside from that, there were relatively few exclusions. Running tidy on all the tests does slow down the formatting check, so it may be worth investigating further optimization.

cc #4534

1 files changed, 9 insertions, 9 deletions

diff --git a/src/test/debug-info/multiple-functions-equal-var-names.rs b/src/test/debug-info/multiple-functions-equal-var-names.rs
index b0d9b0aa884..29a7de4a316 100644
--- a/src/test/debug-info/multiple-functions-equal-var-names.rs
+++ b/src/test/debug-info/multiple-functions-equal-var-names.rs
@@ -31,26 +31,26 @@
 #[allow(unused_variable)];
 
 fn function_one() {
-	let abc = 10101;
-	zzz();
+    let abc = 10101;
+    zzz();
 }
 
 fn function_two() {
-	let abc = 20202;
-	zzz();
+    let abc = 20202;
+    zzz();
 }
 
 
 fn function_three() {
-	let abc = 30303;
-	zzz();
+    let abc = 30303;
+    zzz();
 }
 
 
 fn main() {
-	function_one();
-	function_two();
-	function_three();
+    function_one();
+    function_two();
+    function_three();
 }
 
 fn zzz() {()}