Require an @ in front of all commands

Author: oli-obk

src/header.rs

@@ -435,7 +435,7 @@ fn iter_header(testfile: &Path, cfg: Option<&str>, it: &mut dyn FnMut(&str)) {
         let ln = ln.trim();
         if ln.starts_with("fn") || ln.starts_with("mod") {
             return;
-        } else if let Some(ln) = ln.strip_prefix("//[") {
+        } else if let Some(ln) = ln.strip_prefix("//@[") {
             // A comment like `//[foo]` is specific to revision `foo`
             if let Some((lncfg, ln)) = ln.split_once(']') {
                 if cfg == Some(lncfg) {
@@ -447,7 +447,7 @@ fn iter_header(testfile: &Path, cfg: Option<&str>, it: &mut dyn FnMut(&str)) {
                     ln
                 )
             }
-        } else if let Some(ln) = ln.strip_prefix("//") {
+        } else if let Some(ln) = ln.strip_prefix("//@") {
             it(ln.trim_start());
         }
     }

test-project/tests/assembly/panic.rs

@@ -1,10 +1,10 @@
-// assembly-output: emit-asm
-// compile-flags: --crate-type rlib
+//@assembly-output: emit-asm
+//@compile-flags: --crate-type rlib
 #![no_std]
 
 #[no_mangle]
 fn panic_fun() -> u32 {
     // CHECK-LABEL: panic_fun:
     // CHECK: ud2
     panic!();
-}
+}

test-project/tests/nightly/2018-edition.rs

@@ -1,5 +1,5 @@
-// edition:2018
-// compile-pass
+//@edition:2018
+//@compile-pass
 
 pub struct Foo;
 impl Foo {

test-project/tests/nightly/auxiliary/simple_proc_macro.rs

@@ -1,4 +1,4 @@
-// no-prefer-dynamic
+//@no-prefer-dynamic
 
 #![crate_type = "proc-macro"]
 

test-project/tests/nightly/some-proc-macro.rs

@@ -1,5 +1,5 @@
-// run-pass
-// aux-build:simple_proc_macro.rs
+//@run-pass
+//@aux-build:simple_proc_macro.rs
 
 #![feature(proc_macro_hygiene)]
 

test-project/tests/pretty/macro.rs

@@ -1,6 +1,6 @@
-// pretty-compare-only
-// pretty-mode:expanded
-// pp-exact:macro.pp
+//@pretty-compare-only
+//@pretty-mode:expanded
+//@pp-exact:macro.pp
 
 macro_rules! square {
     ($x:expr) => {

test-project/tests/run-fail/args-panic.rs

@@ -9,7 +9,7 @@
 // except according to those terms.
 
 
-// error-pattern:meep
+//@error-pattern:meep
 
 #![allow(unknown_features)]
 #![feature(box_syntax)]

test-project/tests/run-fail/issue-20971.rs

@@ -10,7 +10,7 @@
 
 // Regression test for Issue #20971.
 
-// error-pattern:Hello, world!
+//@error-pattern:Hello, world!
 
 pub trait Parser {
     type Input;

test-project/tests/run-fail/match-wildcards.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// error-pattern:squirrelcupcake
+//@error-pattern:squirrelcupcake
 fn cmp() -> int {
     match (Some('a'), None::<char>) {
         (Some(_), _) => { panic!("squirrelcupcake"); }

test-project/tests/run-fail/mod-zero.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// error-pattern:attempted remainder with a divisor of zero
+//@error-pattern:attempted remainder with a divisor of zero
 fn main() {
     let y = 0;
     let _z = 1 % y;