Add a test for a past ICE when calling a const fn of an unresolved type with the wrong number of args

tests/ui/consts/ice-extra-args-fn-abi-issue-127423.rs

@@ -0,0 +1,15 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/127423
+
+#![allow(dead_code)]
+
+const fn add(a: &'self isize) -> usize {
+    //~^ ERROR use of undeclared lifetime name `'self`
+    //~| ERROR lifetimes cannot use keyword names
+    Qux + y
+    //~^ ERROR cannot find value `Qux` in this scope
+    //~| ERROR cannot find value `y` in this scope
+}
+
+const ARR: [i32; add(1, 2)] = [5, 6, 7];
+
+pub fn main() {}

tests/ui/consts/ice-extra-args-fn-abi-issue-127423.stderr

@@ -0,0 +1,39 @@
+error: lifetimes cannot use keyword names
+  --> $DIR/ice-extra-args-fn-abi-issue-127423.rs:5:18
+   |
+LL | const fn add(a: &'self isize) -> usize {
+   |                  ^^^^^
+
+error[E0261]: use of undeclared lifetime name `'self`
+  --> $DIR/ice-extra-args-fn-abi-issue-127423.rs:5:18
+   |
+LL | const fn add(a: &'self isize) -> usize {
+   |                  ^^^^^ undeclared lifetime
+   |
+help: consider introducing lifetime `'self` here
+   |
+LL | const fn add<'self>(a: &'self isize) -> usize {
+   |             +++++++
+
+error[E0425]: cannot find value `Qux` in this scope
+  --> $DIR/ice-extra-args-fn-abi-issue-127423.rs:8:5
+   |
+LL |     Qux + y
+   |     ^^^ not found in this scope
+
+error[E0425]: cannot find value `y` in this scope
+  --> $DIR/ice-extra-args-fn-abi-issue-127423.rs:8:11
+   |
+LL |     Qux + y
+   |           ^
+   |
+help: a local variable with a similar name exists
+   |
+LL -     Qux + y
+LL +     Qux + a
+   |
+
+error: aborting due to 4 previous errors
+
+Some errors have detailed explanations: E0261, E0425.
+For more information about an error, try `rustc --explain E0261`.