[clang-tools-extra] [clang-tidy] support string::contains (PR #110351)

[Nicolas van Kempen via cfe-commits]

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@@ -32,7 +33,8 @@ void ContainerContainsCheck::registerMatchers(MatchFinder *Finder) {
 
   const auto FindCall =
       cxxMemberCallExpr(
-          argumentCountIs(1),
+          anyOf(argumentCountIs(1),
+                allOf(argumentCountIs(2), hasArgument(1, cxxDefaultArgExpr()))),
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nicovank wrote:

Maybe a comment here saying `std::string` and `std::string_view` take an optional `pos` argument on where to start the search. Also match `ignoringParenImpCasts(integerLiteral(0))`?

https://github.com/llvm/llvm-project/pull/110351