Suggest wrapping in a closure instead of call parens when a method is passed where an Fn callable is expected

[Yogeshwaran-Projects]

Fixes #162033
When an uncalled method is passed where an Fn callable is expected, E0615's "use parentheses to call the method" help leads into a second error — this instead suggests wrapping it in a closure (call(|| foo.print())) falling through to the old suggestion everywhere else.

Before:

error[E0615]: attempted to take value of method `print` on type `FooPrinter`
  --> src/main.rs:21:28
   |
21 |     call(FooPrinter::new().print);
   |                            ^^^^^ method, not a field
   |
help: use parentheses to call the method
   |
21 |     call(FooPrinter::new().print());
   |                                 ++

For more information about this error, try `rustc --explain E0615`.

After:

error[E0615]: attempted to take value of method `print` on type `FooPrinter`
  --> $DIR/method-value-expected-fn-arg.rs:20:28
   |
LL |     call(FooPrinter::new().print);
   |                            ^^^^^ method, not a field
   |
help: consider wrapping the method call in a closure
   |
LL |     call(|| FooPrinter::new().print());
   |          ++                        ++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0615`.

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