Rollup merge of #104422 - compiler-errors:fix-suggest_associated_call_syntax, r=BoxyUwU

Fix suggest associated call syntax

Fixes #104412

Author: matthiaskrgr

compiler/rustc_hir_typeck/src/method/suggest.rs

@@ -0,0 +1,4 @@
+fn main() {
+    1_u32.MAX();
+    //~^ ERROR no method named `MAX` found for type `u32` in the current scope
+}

src/test/ui/suggestions/dont-suggest-ufcs-for-const.rs

@@ -0,0 +1,15 @@
+error[E0599]: no method named `MAX` found for type `u32` in the current scope
+  --> $DIR/dont-suggest-ufcs-for-const.rs:2:11
+   |
+LL |     1_u32.MAX();
+   |     ------^^^--
+   |     |     |
+   |     |     this is an associated function, not a method
+   |     help: use associated function syntax instead: `u32::MAX()`
+   |
+   = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
+   = note: the candidate is defined in an impl for the type `u32`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0599`.

src/test/ui/suggestions/dont-suggest-ufcs-for-const.stderr

@@ -0,0 +1,15 @@
+// run-rustfix
+
+#![allow(unused)]
+
+struct Foo<T>(T);
+
+impl<T> Foo<T> {
+    fn test() -> i32 { 1 }
+}
+
+fn main() {
+    let x = Box::new(Foo(1i32));
+    Foo::<i32>::test();
+    //~^ ERROR no method named `test` found for struct `Box<Foo<i32>>` in the current scope
+}

src/test/ui/suggestions/suggest-assoc-fn-call-deref.fixed

@@ -0,0 +1,15 @@
+// run-rustfix
+
+#![allow(unused)]
+
+struct Foo<T>(T);
+
+impl<T> Foo<T> {
+    fn test() -> i32 { 1 }
+}
+
+fn main() {
+    let x = Box::new(Foo(1i32));
+    x.test();
+    //~^ ERROR no method named `test` found for struct `Box<Foo<i32>>` in the current scope
+}

src/test/ui/suggestions/suggest-assoc-fn-call-deref.rs

@@ -0,0 +1,19 @@
+error[E0599]: no method named `test` found for struct `Box<Foo<i32>>` in the current scope
+  --> $DIR/suggest-assoc-fn-call-deref.rs:13:7
+   |
+LL |     x.test();
+   |     --^^^^--
+   |     | |
+   |     | this is an associated function, not a method
+   |     help: use associated function syntax instead: `Foo::<i32>::test()`
+   |
+   = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
+note: the candidate is defined in an impl for the type `Foo<T>`
+  --> $DIR/suggest-assoc-fn-call-deref.rs:8:5
+   |
+LL |     fn test() -> i32 { 1 }
+   |     ^^^^^^^^^^^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0599`.