Fuzzer `solc_ossfuzz` segmentation fault (nullptr deference) in `Analysis::annotationContainer`

[gal1ium]

Hi, we found a test case causing segmentation fault when testing with the driver solc_ossfuzz

PoC:

pragma experimental solidity;
type T(A);
function f(x: 0(0)) {}
function r(a: 0(0)) {
    6000((0 ((,0())))) =6000000000000;
}

It's passing a null pointer to the function Analysis::annotationContainer, causing a null pointer dereference.

Commit id: 9651663