Test assertion string bugfix

[g-r-a-n-t]

What was wrong?

Yul codegen was failing to include string literals used in test assertions. This resulted in a compiler error.

Example:

#test
fn foo() {
    assert false, "oops"
}

How was it fixed?

I had to reorder some statements dealing with the analyzer context in the Yul test lowering function.

To-Do

• OPTIONAL: Update Spec if applicable
• Add entry to the release notes (may forgo for trivial changes)
• Clean up commit history