Don't elide information when printing E0308 with Zverbose

2 files changed, 34 insertions, 0 deletions

diff --git a/src/test/ui/fn/signature-error-reporting-under-verbose.rs b/src/test/ui/fn/signature-error-reporting-under-verbose.rs
new file mode 100644
index 00000000000..d7a8c95e8b2
--- /dev/null
+++ b/src/test/ui/fn/signature-error-reporting-under-verbose.rs
@@ -0,0 +1,15 @@
+// compile-flags: -Zverbose
+
+fn foo(_: i32, _: i32) {}
+
+fn needs_ptr(_: fn(i32, u32)) {}
+//~^ NOTE function defined here
+//~| NOTE
+
+fn main() {
+    needs_ptr(foo);
+    //~^ ERROR mismatched types
+    //~| NOTE expected `u32`, found `i32`
+    //~| NOTE expected fn pointer `fn(i32, u32)`
+    //~| NOTE arguments to this function are incorrect
+}
diff --git a/src/test/ui/fn/signature-error-reporting-under-verbose.stderr b/src/test/ui/fn/signature-error-reporting-under-verbose.stderr
new file mode 100644
index 00000000000..6260fc8dcec
--- /dev/null
+++ b/src/test/ui/fn/signature-error-reporting-under-verbose.stderr
@@ -0,0 +1,19 @@
+error[E0308]: mismatched types
+  --> $DIR/signature-error-reporting-under-verbose.rs:10:15
+   |
+LL |     needs_ptr(foo);
+   |     --------- ^^^ expected `u32`, found `i32`
+   |     |
+   |     arguments to this function are incorrect
+   |
+   = note: expected fn pointer `fn(i32, u32)`
+                 found fn item `fn(i32, i32) {foo}`
+note: function defined here
+  --> $DIR/signature-error-reporting-under-verbose.rs:5:4
+   |
+LL | fn needs_ptr(_: fn(i32, u32)) {}
+   |    ^^^^^^^^^ ---------------
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.