Auto merge of #3819 - mikerite:rustfmt-formatting-tests, r=phansch

Add [rustfmt::skip] to formatting lint tests

ci/base-tests.sh

@@ -59,7 +59,7 @@ rustup override set nightly
 # avoid loop spam and allow cmds with exit status != 0
 set +ex
 
-for file in `find tests -not -path "tests/ui/formatting.rs" -not -path "tests/ui/empty_line_after_outer_attribute.rs" -not -path "tests/ui/double_parens.rs" -not -path "tests/ui/doc.rs" -not -path "tests/ui/unused_unit.rs" | grep "\.rs$"` ; do
+for file in `find tests -not -path "tests/ui/empty_line_after_outer_attribute.rs" -not -path "tests/ui/double_parens.rs" -not -path "tests/ui/doc.rs" -not -path "tests/ui/unused_unit.rs" | grep "\.rs$"` ; do
   rustfmt ${file} --check
   if [ $? -ne 0 ]; then
     echo "${file} needs reformatting!"

tests/ui/formatting.rs

@@ -4,8 +4,11 @@
 #![allow(clippy::if_same_then_else)]
 #![allow(clippy::deref_addrof)]
 
-fn foo() -> bool { true }
+fn foo() -> bool {
+    true
+}
 
+#[rustfmt::skip]
 fn main() {
     // weird `else` formatting:
     if foo() {

tests/ui/formatting.stderr

@@ -1,5 +1,5 @@
 error: this looks like an `else {..}` but the `else` is missing
-  --> $DIR/formatting.rs:12:6
+  --> $DIR/formatting.rs:15:6
    |
 LL |     } {
    |      ^
@@ -8,7 +8,7 @@ LL |     } {
    = note: to remove this lint, add the missing `else` or add a new line before the next block
 
 error: this looks like an `else if` but the `else` is missing
-  --> $DIR/formatting.rs:16:6
+  --> $DIR/formatting.rs:19:6
    |
 LL |     } if foo() {
    |      ^
@@ -16,7 +16,7 @@ LL |     } if foo() {
    = note: to remove this lint, add the missing `else` or add a new line before the second `if`
 
 error: this looks like an `else if` but the `else` is missing
-  --> $DIR/formatting.rs:23:10
+  --> $DIR/formatting.rs:26:10
    |
 LL |         } if foo() {
    |          ^
@@ -24,7 +24,7 @@ LL |         } if foo() {
    = note: to remove this lint, add the missing `else` or add a new line before the second `if`
 
 error: this looks like an `else if` but the `else` is missing
-  --> $DIR/formatting.rs:31:10
+  --> $DIR/formatting.rs:34:10
    |
 LL |         } if foo() {
    |          ^
@@ -32,7 +32,7 @@ LL |         } if foo() {
    = note: to remove this lint, add the missing `else` or add a new line before the second `if`
 
 error: this is an `else {..}` but the formatting might hide it
-  --> $DIR/formatting.rs:40:6
+  --> $DIR/formatting.rs:43:6
    |
 LL |       } else
    |  ______^
@@ -42,7 +42,7 @@ LL | |     {
    = note: to remove this lint, remove the `else` or remove the new line between `else` and `{..}`
 
 error: this is an `else {..}` but the formatting might hide it
-  --> $DIR/formatting.rs:45:6
+  --> $DIR/formatting.rs:48:6
    |
 LL |       }
    |  ______^
@@ -53,7 +53,7 @@ LL | |     {
    = note: to remove this lint, remove the `else` or remove the new line between `else` and `{..}`
 
 error: this is an `else if` but the formatting might hide it
-  --> $DIR/formatting.rs:51:6
+  --> $DIR/formatting.rs:54:6
    |
 LL |       } else
    |  ______^
@@ -63,7 +63,7 @@ LL | |     if foo() { // the span of the above error should continue here
    = note: to remove this lint, remove the `else` or remove the new line between `else` and `if`
 
 error: this is an `else if` but the formatting might hide it
-  --> $DIR/formatting.rs:56:6
+  --> $DIR/formatting.rs:59:6
    |
 LL |       }
    |  ______^
@@ -74,7 +74,7 @@ LL | |     if foo() { // the span of the above error should continue here
    = note: to remove this lint, remove the `else` or remove the new line between `else` and `if`
 
 error: this looks like you are trying to use `.. -= ..`, but you really are doing `.. = (- ..)`
-  --> $DIR/formatting.rs:97:6
+  --> $DIR/formatting.rs:100:6
    |
 LL |     a =- 35;
    |      ^^^^
@@ -83,7 +83,7 @@ LL |     a =- 35;
    = note: to remove this lint, use either `-=` or `= -`
 
 error: this looks like you are trying to use `.. *= ..`, but you really are doing `.. = (* ..)`
-  --> $DIR/formatting.rs:98:6
+  --> $DIR/formatting.rs:101:6
    |
 LL |     a =* &191;
    |      ^^^^
@@ -91,7 +91,7 @@ LL |     a =* &191;
    = note: to remove this lint, use either `*=` or `= *`
 
 error: this looks like you are trying to use `.. != ..`, but you really are doing `.. = (! ..)`
-  --> $DIR/formatting.rs:101:6
+  --> $DIR/formatting.rs:104:6
    |
 LL |     b =! false;
    |      ^^^^
@@ -99,7 +99,7 @@ LL |     b =! false;
    = note: to remove this lint, use either `!=` or `= !`
 
 error: possibly missing a comma here
-  --> $DIR/formatting.rs:110:19
+  --> $DIR/formatting.rs:113:19
    |
 LL |         -1, -2, -3 // <= no comma here
    |                   ^
@@ -108,7 +108,7 @@ LL |         -1, -2, -3 // <= no comma here
    = note: to remove this lint, add a comma or write the expr in a single line
 
 error: possibly missing a comma here
-  --> $DIR/formatting.rs:114:19
+  --> $DIR/formatting.rs:117:19
    |
 LL |         -1, -2, -3 // <= no comma here
    |                   ^