E3700

Compiler diagnostic name: extra_ast_lint_warning.

The parser found a syntax pattern that has a dedicated lint suggestion.

This diagnostic is used for AST-level lints that are reported as compiler errors. One common case is multiplying a string literal by a number.

Erroneous example

///|
pub fn repeated() -> String {
  "ha" * 3
}

Suggestion

Use the suggested API directly.

///|
pub fn repeated() -> String {
  "ha".repeat(3)
}