Detect C lang printing functions and suggest the appropriate macro call

[estebank]

We already translate from C-style formatting strings to Rust formatting strings when passed to the format! family of macros. We should also detect invalid fn calls from other languages that were meant to be macro calls:

fn main() {
    let x = 4;
    printf("%d", x);
}

currently emits the dry

error[E0425]: cannot find function `printf` in this scope
 --> <source>:3:5
  |
3 |     printf("%d", x);
  |     ^^^^^^ not found in this scope

while it could be

error[E0425]: cannot find function `printf` in this scope
 --> <source>:3:5
  |
3 |     printf("%d", x);
  |     ^^^^^^ not found in this scope
help: you might have meant to use the `print!` macro
 --> <source>:3:5
  |
3 |     print!("{}", x);
  |     ~~~~~~  ~~

[vincenzopalazzo]

@rustbot claim

[vincenzopalazzo]

Mentoring @amustaque97 on this issue

@rustbot label +E-mentor