This check aims to simplify string constants by dropping redundant
single quote escape sequences. The check is optimized for performance.
While there, update existing checks such that they do not introduce
violations of the type flagged by this new check.
This check validates that checks defined by Error Prone Support
reference the public website, unless they explicitly specify that their
diagnostics output must not include a link.
By raising this baseline the project can now use Java 17 language features such
as text blocks, switch expressions and `instanceof` pattern matching. The code
has been updated to make use of these constructs.
Note that the project can still be used by builds that target an older version
of Java, as long as those builds are executed using JDK 17+.
The new `@TypeMigration` annotation can be placed on Refaster rule
collections to indicate that they migrate most or all public methods of
an indicated type. The new check validates the claim made by the
annotation.
