Ruby: Traditional if-else not detected as `StringConstArrayInclusionCallBarrier` compared to conditional assignment.

**Information**
CodeQL Version:
7f5df4fc0e9ec8ffed0e8eefe78fb5544be46dc4

**Description of the issue**
Create a database for this ruby code:
```ruby
aaa = "imagine this is derived from a remote source"
if ["fff", "eee"].include?(aaa) # {1}
# accept aaa as is
else
aaa = "Value"
end

aaa = if ["fff", "eee"].include?(aaa) # {2}
aaa
else
"Value"
end
```

**Expected**
1. {1} and {2} are detected as a `StringConstArrayInclusionCall` (using quick-eval)
2. {1} and {2} are detected as a `StringConstArrayInclusionCallBarrier` (using quick-eval)

**Actual**
1. {1} and {2} are detected as a `StringConstArrayInclusionCall` (using quick-eval)
2. {1} **is not** detected as a `StringConstArrayInclusionCallBarrier` (using quick-eval)
3. {2} **is** detected as a `StringConstArrayInclusionCallBarrier` (using quick-eval)