From 32e0ef34b470d47fcd99c310ab399c0599e1c680 Mon Sep 17 00:00:00 2001
From: Michael Goulet <michael@errs.io>
Date: Mon, 4 Jul 2022 10:50:49 -0700
Subject: [PATCH] Add some additional double-adjustment regression tests

---
 .../ui/argument-suggestions/issue-98894.rs    |  4 ++++
 .../argument-suggestions/issue-98894.stderr   | 19 +++++++++++++++++++
 .../ui/argument-suggestions/issue-98897.rs    |  4 ++++
 .../argument-suggestions/issue-98897.stderr   | 19 +++++++++++++++++++
 4 files changed, 46 insertions(+)
 create mode 100644 src/test/ui/argument-suggestions/issue-98894.rs
 create mode 100644 src/test/ui/argument-suggestions/issue-98894.stderr
 create mode 100644 src/test/ui/argument-suggestions/issue-98897.rs
 create mode 100644 src/test/ui/argument-suggestions/issue-98897.stderr

diff --git a/src/test/ui/argument-suggestions/issue-98894.rs b/src/test/ui/argument-suggestions/issue-98894.rs
new file mode 100644
index 0000000000000..c2618a96716a5
--- /dev/null
+++ b/src/test/ui/argument-suggestions/issue-98894.rs
@@ -0,0 +1,4 @@
+fn main() {
+    (|_, ()| ())(if true {} else {return;});
+    //~^ ERROR this function takes 2 arguments but 1 argument was supplied
+}
diff --git a/src/test/ui/argument-suggestions/issue-98894.stderr b/src/test/ui/argument-suggestions/issue-98894.stderr
new file mode 100644
index 0000000000000..0c8b94901e16f
--- /dev/null
+++ b/src/test/ui/argument-suggestions/issue-98894.stderr
@@ -0,0 +1,19 @@
+error[E0057]: this function takes 2 arguments but 1 argument was supplied
+  --> $DIR/issue-98894.rs:2:5
+   |
+LL |     (|_, ()| ())(if true {} else {return;});
+   |     ^^^^^^^^^^^^--------------------------- an argument of type `()` is missing
+   |
+note: closure defined here
+  --> $DIR/issue-98894.rs:2:6
+   |
+LL |     (|_, ()| ())(if true {} else {return;});
+   |      ^^^^^^^
+help: provide the argument
+   |
+LL |     (|_, ()| ())(if true {} else {return;}, ());
+   |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0057`.
diff --git a/src/test/ui/argument-suggestions/issue-98897.rs b/src/test/ui/argument-suggestions/issue-98897.rs
new file mode 100644
index 0000000000000..c55f495d69862
--- /dev/null
+++ b/src/test/ui/argument-suggestions/issue-98897.rs
@@ -0,0 +1,4 @@
+fn main() {
+    (|_, ()| ())([return, ()]);
+    //~^ ERROR this function takes 2 arguments but 1 argument was supplied
+}
diff --git a/src/test/ui/argument-suggestions/issue-98897.stderr b/src/test/ui/argument-suggestions/issue-98897.stderr
new file mode 100644
index 0000000000000..8f0d98d09e89e
--- /dev/null
+++ b/src/test/ui/argument-suggestions/issue-98897.stderr
@@ -0,0 +1,19 @@
+error[E0057]: this function takes 2 arguments but 1 argument was supplied
+  --> $DIR/issue-98897.rs:2:5
+   |
+LL |     (|_, ()| ())([return, ()]);
+   |     ^^^^^^^^^^^^-------------- an argument of type `()` is missing
+   |
+note: closure defined here
+  --> $DIR/issue-98897.rs:2:6
+   |
+LL |     (|_, ()| ())([return, ()]);
+   |      ^^^^^^^
+help: provide the argument
+   |
+LL |     (|_, ()| ())([return, ()], ());
+   |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0057`.