Use error comment for manual_div_ceil tests

Author: belyakov-am

tests/ui/manual_div_ceil.fixed

@@ -5,15 +5,15 @@ fn main() {
     let y = 4_u32;
     let z = 11_u32;
 
-    // Lint.
-    let _ = x.div_ceil(y);
-    let _ = x.div_ceil(y);
-    let _ = x.div_ceil(y);
+    // Lint
+    let _ = x.div_ceil(y); //~ ERROR: manually reimplementing `div_ceil`
+    let _ = x.div_ceil(y); //~ ERROR: manually reimplementing `div_ceil`
+    let _ = x.div_ceil(y); //~ ERROR: manually reimplementing `div_ceil`
 
-    let _ = 7_u32.div_ceil(4);
-    let _ = (7_i32 as u32).div_ceil(4);
+    let _ = 7_u32.div_ceil(4); //~ ERROR: manually reimplementing `div_ceil`
+    let _ = (7_i32 as u32).div_ceil(4); //~ ERROR: manually reimplementing `div_ceil`
 
-    // No lint.
+    // No lint
     let _ = (x + (y - 2)) / y;
     let _ = (x + (y + 1)) / y;
 

tests/ui/manual_div_ceil.rs

@@ -5,15 +5,15 @@ fn main() {
     let y = 4_u32;
     let z = 11_u32;
 
-    // Lint.
-    let _ = (x + (y - 1)) / y;
-    let _ = ((y - 1) + x) / y;
-    let _ = (x + y - 1) / y;
+    // Lint
+    let _ = (x + (y - 1)) / y; //~ ERROR: manually reimplementing `div_ceil`
+    let _ = ((y - 1) + x) / y; //~ ERROR: manually reimplementing `div_ceil`
+    let _ = (x + y - 1) / y; //~ ERROR: manually reimplementing `div_ceil`
 
-    let _ = (7_u32 + (4 - 1)) / 4;
-    let _ = (7_i32 as u32 + (4 - 1)) / 4;
+    let _ = (7_u32 + (4 - 1)) / 4; //~ ERROR: manually reimplementing `div_ceil`
+    let _ = (7_i32 as u32 + (4 - 1)) / 4; //~ ERROR: manually reimplementing `div_ceil`
 
-    // No lint.
+    // No lint
     let _ = (x + (y - 2)) / y;
     let _ = (x + (y + 1)) / y;