Add test cases for suggestions with unsafe operations contained inside macros

tests/ui/unsafe/auxiliary/external_unsafe_macro.rs

@@ -0,0 +1,4 @@
+pub unsafe fn unsf() {}
+
+#[macro_export]
+macro_rules! unsafe_macro { () => ($crate::unsf()) }

tests/ui/unsafe/wrapping-unsafe-block-sugg.fixed

@@ -1,7 +1,10 @@
 // run-rustfix
+// aux-build:external_unsafe_macro.rs
 
 #![deny(unsafe_op_in_unsafe_fn)] //~ NOTE
 
+extern crate external_unsafe_macro;
+
 unsafe fn unsf() {}
 
 pub unsafe fn foo() { unsafe {
@@ -35,4 +38,29 @@ pub unsafe fn baz() -> i32 { unsafe {
     //~| NOTE
 }}
 
+macro_rules! unsafe_macro { () => (unsf()) }
+//~^ ERROR call to unsafe function is unsafe
+//~| NOTE
+//~| NOTE
+//~| ERROR call to unsafe function is unsafe
+//~| NOTE
+//~| NOTE
+
+pub unsafe fn unsafe_in_macro() { unsafe {
+    //~^ NOTE an unsafe function restricts its caller, but its body is safe by default
+    unsafe_macro!();
+    //~^ NOTE
+    //~| NOTE
+    unsafe_macro!();
+    //~^ NOTE
+    //~| NOTE
+}}
+
+pub unsafe fn unsafe_in_external_macro() {
+    // FIXME: https://github.com/rust-lang/rust/issues/112504
+    // FIXME: ~^ NOTE an unsafe function restricts its caller, but its body is safe by default
+    external_unsafe_macro::unsafe_macro!();
+    external_unsafe_macro::unsafe_macro!();
+}
+
 fn main() {}

tests/ui/unsafe/wrapping-unsafe-block-sugg.rs

@@ -1,7 +1,10 @@
 // run-rustfix
+// aux-build:external_unsafe_macro.rs
 
 #![deny(unsafe_op_in_unsafe_fn)] //~ NOTE
 
+extern crate external_unsafe_macro;
+
 unsafe fn unsf() {}
 
 pub unsafe fn foo() {
@@ -35,4 +38,29 @@ pub unsafe fn baz() -> i32 {
     //~| NOTE
 }
 
+macro_rules! unsafe_macro { () => (unsf()) }
+//~^ ERROR call to unsafe function is unsafe
+//~| NOTE
+//~| NOTE
+//~| ERROR call to unsafe function is unsafe
+//~| NOTE
+//~| NOTE
+
+pub unsafe fn unsafe_in_macro() {
+    //~^ NOTE an unsafe function restricts its caller, but its body is safe by default
+    unsafe_macro!();
+    //~^ NOTE
+    //~| NOTE
+    unsafe_macro!();
+    //~^ NOTE
+    //~| NOTE
+}
+
+pub unsafe fn unsafe_in_external_macro() {
+    // FIXME: https://github.com/rust-lang/rust/issues/112504
+    // FIXME: ~^ NOTE an unsafe function restricts its caller, but its body is safe by default
+    external_unsafe_macro::unsafe_macro!();
+    external_unsafe_macro::unsafe_macro!();
+}
+
 fn main() {}

tests/ui/unsafe/wrapping-unsafe-block-sugg.stderr

@@ -1,21 +1,3 @@
-error: call to unsafe function is unsafe and requires unsafe block (error E0133)
-  --> $DIR/wrapping-unsafe-block-sugg.rs:9:5
-   |
-LL |     unsf();
-   |     ^^^^^^ call to unsafe function
-   |
-   = note: consult the function's documentation for information on how to avoid undefined behavior
-note: an unsafe function restricts its caller, but its body is safe by default
-  --> $DIR/wrapping-unsafe-block-sugg.rs:7:1
-   |
-LL | pub unsafe fn foo() {
-   | ^^^^^^^^^^^^^^^^^^^
-note: the lint level is defined here
-  --> $DIR/wrapping-unsafe-block-sugg.rs:3:9
-   |
-LL | #![deny(unsafe_op_in_unsafe_fn)]
-   |         ^^^^^^^^^^^^^^^^^^^^^^
-
 error: call to unsafe function is unsafe and requires unsafe block (error E0133)
   --> $DIR/wrapping-unsafe-block-sugg.rs:12:5
    |
@@ -23,22 +5,40 @@ LL |     unsf();
    |     ^^^^^^ call to unsafe function
    |
    = note: consult the function's documentation for information on how to avoid undefined behavior
+note: an unsafe function restricts its caller, but its body is safe by default
+  --> $DIR/wrapping-unsafe-block-sugg.rs:10:1
+   |
+LL | pub unsafe fn foo() {
+   | ^^^^^^^^^^^^^^^^^^^
+note: the lint level is defined here
+  --> $DIR/wrapping-unsafe-block-sugg.rs:4:9
+   |
+LL | #![deny(unsafe_op_in_unsafe_fn)]
+   |         ^^^^^^^^^^^^^^^^^^^^^^
+
+error: call to unsafe function is unsafe and requires unsafe block (error E0133)
+  --> $DIR/wrapping-unsafe-block-sugg.rs:15:5
+   |
+LL |     unsf();
+   |     ^^^^^^ call to unsafe function
+   |
+   = note: consult the function's documentation for information on how to avoid undefined behavior
 
 error: dereference of raw pointer is unsafe and requires unsafe block (error E0133)
-  --> $DIR/wrapping-unsafe-block-sugg.rs:19:13
+  --> $DIR/wrapping-unsafe-block-sugg.rs:22:13
    |
 LL |     let y = *x;
    |             ^^ dereference of raw pointer
    |
    = note: raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior
 note: an unsafe function restricts its caller, but its body is safe by default
-  --> $DIR/wrapping-unsafe-block-sugg.rs:17:1
+  --> $DIR/wrapping-unsafe-block-sugg.rs:20:1
    |
 LL | pub unsafe fn bar(x: *const i32) -> i32 {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: dereference of raw pointer is unsafe and requires unsafe block (error E0133)
-  --> $DIR/wrapping-unsafe-block-sugg.rs:22:9
+  --> $DIR/wrapping-unsafe-block-sugg.rs:25:9
    |
 LL |     y + *x
    |         ^^ dereference of raw pointer
@@ -46,25 +46,54 @@ LL |     y + *x
    = note: raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior
 
 error: use of mutable static is unsafe and requires unsafe block (error E0133)
-  --> $DIR/wrapping-unsafe-block-sugg.rs:30:13
+  --> $DIR/wrapping-unsafe-block-sugg.rs:33:13
    |
 LL |     let y = BAZ;
    |             ^^^ use of mutable static
    |
    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
 note: an unsafe function restricts its caller, but its body is safe by default
-  --> $DIR/wrapping-unsafe-block-sugg.rs:28:1
+  --> $DIR/wrapping-unsafe-block-sugg.rs:31:1
    |
 LL | pub unsafe fn baz() -> i32 {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: use of mutable static is unsafe and requires unsafe block (error E0133)
-  --> $DIR/wrapping-unsafe-block-sugg.rs:33:9
+  --> $DIR/wrapping-unsafe-block-sugg.rs:36:9
    |
 LL |     y + BAZ
    |         ^^^ use of mutable static
    |
    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
 
-error: aborting due to 6 previous errors
+error: call to unsafe function is unsafe and requires unsafe block (error E0133)
+  --> $DIR/wrapping-unsafe-block-sugg.rs:41:36
+   |
+LL | macro_rules! unsafe_macro { () => (unsf()) }
+   |                                    ^^^^^^ call to unsafe function
+...
+LL |     unsafe_macro!();
+   |     --------------- in this macro invocation
+   |
+   = note: consult the function's documentation for information on how to avoid undefined behavior
+note: an unsafe function restricts its caller, but its body is safe by default
+  --> $DIR/wrapping-unsafe-block-sugg.rs:49:1
+   |
+LL | pub unsafe fn unsafe_in_macro() {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   = note: this error originates in the macro `unsafe_macro` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: call to unsafe function is unsafe and requires unsafe block (error E0133)
+  --> $DIR/wrapping-unsafe-block-sugg.rs:41:36
+   |
+LL | macro_rules! unsafe_macro { () => (unsf()) }
+   |                                    ^^^^^^ call to unsafe function
+...
+LL |     unsafe_macro!();
+   |     --------------- in this macro invocation
+   |
+   = note: consult the function's documentation for information on how to avoid undefined behavior
+   = note: this error originates in the macro `unsafe_macro` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to 8 previous errors