[clang] [clang-tools-extra] [clang][ASTMatchers] Fix `hasArraySize` crash without a size expression (PR #215082)

[Yanzuo Liu via cfe-commits]

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@@ -8652,8 +8652,8 @@ AST_MATCHER_P(CXXNewExpr, hasAnyPlacementArg, internal::Matcher<Expr>,
 /// cxxNewExpr(hasArraySize(integerLiteral(equals(10))))
 ///   matches the expression 'new MyClass[10]'.
 AST_MATCHER_P(CXXNewExpr, hasArraySize, internal::Matcher<Expr>, InnerMatcher) {
-  return Node.isArray() && *Node.getArraySize() &&
-         InnerMatcher.matches(**Node.getArraySize(), Finder, Builder);
+  const auto ArraySize = Node.getArraySize();
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zwuis wrote:

Write its real type.

https://github.com/llvm/llvm-project/pull/215082