Auto merge of rust-lang#7988 - giraffate:fix_ice_on_undocumented_unsafe_blocks, r=flip1995

Fix ICE on `undocumented_unsafe_blocks`

fix rust-lang/rust-clippy#7979

changelog: Fix ICE on `undocumented_unsafe_blocks`

Author: bors

clippy_lints/src/undocumented_unsafe_blocks.rs

@@ -137,10 +137,10 @@ impl UndocumentedUnsafeBlocks {
 
         let between_span = if block_span.from_expansion() {
             self.macro_expansion = true;
-            enclosing_scope_span.with_hi(block_span.hi())
+            enclosing_scope_span.with_hi(block_span.hi()).source_callsite()
         } else {
             self.macro_expansion = false;
-            enclosing_scope_span.to(block_span)
+            enclosing_scope_span.to(block_span).source_callsite()
         };
 
         let file_name = source_map.span_to_filename(between_span);

tests/ui/undocumented_unsafe_blocks.rs

@@ -284,4 +284,8 @@ fn interference() {
     unsafe {};
 }
 
+pub fn print_binary_tree() {
+    println!("{}", unsafe { String::from_utf8_unchecked(vec![]) });
+}
+
 fn main() {}

tests/ui/undocumented_unsafe_blocks.stderr

@@ -155,5 +155,17 @@ LL ~     // Safety: ...
 LL ~     unsafe {};
    |
 
-error: aborting due to 13 previous errors
+error: unsafe block missing a safety comment
+  --> $DIR/undocumented_unsafe_blocks.rs:288:20
+   |
+LL |     println!("{}", unsafe { String::from_utf8_unchecked(vec![]) });
+   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: consider adding a safety comment
+   |
+LL ~     println!("{}", // Safety: ...
+LL ~     unsafe { String::from_utf8_unchecked(vec![]) });
+   |
+
+error: aborting due to 14 previous errors