pprust: support multiline comments within lines

This commit adds support to rustc_ast_pretty for multiline comments that
start and end within a line of source code.

Signed-off-by: David Wood <david@davidtw.co>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/test/pretty/issue-73626.rs b/src/test/pretty/issue-73626.rs
new file mode 100644
index 00000000000..a002f09be3b
--- /dev/null
+++ b/src/test/pretty/issue-73626.rs
@@ -0,0 +1,34 @@
+fn main(/*
+    ---
+*/) {
+    let x /* this is one line */ = 3;
+
+    let x /*
+           * this
+           * is
+           * multiple
+           * lines
+           */ = 3;
+
+    let x = /*
+           * this
+           * is
+           * multiple
+           * lines
+           * after
+           * the
+           * =
+           */ 3;
+
+    let x /*
+           * this
+           * is
+           * multiple
+           * lines
+           * including
+           * a
+
+           * blank
+           * line
+           */ = 3;
+}