Always sort suggestions before emitting them

Author: estebank

tests/ui/nonminimal_bool.stderr

@@ -50,10 +50,10 @@ LL |     let _ = a == b && c == 5 && a == b;
    |
 help: try
    |
-LL |     let _ = a == b && c == 5;
-   |             ~~~~~~~~~~~~~~~~
 LL |     let _ = !(a != b || c != 5);
    |             ~~~~~~~~~~~~~~~~~~~
+LL |     let _ = a == b && c == 5;
+   |             ~~~~~~~~~~~~~~~~
 
 error: this boolean expression can be simplified
   --> $DIR/nonminimal_bool.rs:28:13
@@ -63,10 +63,10 @@ LL |     let _ = a == b || c == 5 || a == b;
    |
 help: try
    |
-LL |     let _ = a == b || c == 5;
-   |             ~~~~~~~~~~~~~~~~
 LL |     let _ = !(a != b && c != 5);
    |             ~~~~~~~~~~~~~~~~~~~
+LL |     let _ = a == b || c == 5;
+   |             ~~~~~~~~~~~~~~~~
 
 error: this boolean expression can be simplified
   --> $DIR/nonminimal_bool.rs:29:13
@@ -76,10 +76,10 @@ LL |     let _ = a == b && c == 5 && b == a;
    |
 help: try
    |
-LL |     let _ = a == b && c == 5;
-   |             ~~~~~~~~~~~~~~~~
 LL |     let _ = !(a != b || c != 5);
    |             ~~~~~~~~~~~~~~~~~~~
+LL |     let _ = a == b && c == 5;
+   |             ~~~~~~~~~~~~~~~~
 
 error: this boolean expression can be simplified
   --> $DIR/nonminimal_bool.rs:30:13
@@ -89,10 +89,10 @@ LL |     let _ = a != b || !(a != b || c == d);
    |
 help: try
    |
-LL |     let _ = a != b || c != d;
-   |             ~~~~~~~~~~~~~~~~
 LL |     let _ = !(a == b && c == d);
    |             ~~~~~~~~~~~~~~~~~~~
+LL |     let _ = a != b || c != d;
+   |             ~~~~~~~~~~~~~~~~
 
 error: this boolean expression can be simplified
   --> $DIR/nonminimal_bool.rs:31:13
@@ -102,10 +102,10 @@ LL |     let _ = a != b && !(a != b && c == d);
    |
 help: try
    |
-LL |     let _ = a != b && c != d;
-   |             ~~~~~~~~~~~~~~~~
 LL |     let _ = !(a == b || c == d);
    |             ~~~~~~~~~~~~~~~~~~~
+LL |     let _ = a != b && c != d;
+   |             ~~~~~~~~~~~~~~~~
 
 error: aborting due to 12 previous errors