**Edit:**
I suggest we avoid diagnosing initializers for `std::array` type. The
fixit provided is incorrect as observed in **#133715.** The only
workaround would require C99-style array designators which don’t really
align with the purpose of this check. This would also generate extra
compiler warnings.
Fixes#133715
Fix#113652.
When calling `Node.isAggregate()` and `Node.isPOD()`, if `Node` is declared but
not defined, it will result in null pointer dereference (and if assertions are
enabled, it will cause an assertion failure).
Instance of DenseMap were copied into local variable,
and as a result reference to string stored in that local
variable were returned from function. At the end fix-it
were applied with already destroyed string causing some
non utf-8 characters to be printed.
Related to #80541
