Disable ASAN for ExecuteSwitchImplCpp

ASAN bloats this function enormously and causes it to overflow the
Wframe-larger-than size. This disables the ASAN checks in this
function until we find a better way to fix this.

Test: SANITIZE_HOST=address ASAN_OPTIONS=detect_leaks=0 ./test.py --host
Bug: 73255278
Bug: 111357976
Bug: 117341496
Change-Id: I724b805727514a512cf658759d4e90610f39cbfa