Function emit_test_body 

pub fn emit_test_body(
    body: &Block,
    actions: &HashMap<String, u32>,
    dispatch_func_idx: u32,
    init_func_idx: u32,
    ctx: &mut FuncContext,
    f: &mut Function,
) -> CodegenResult<()>

Compile a single test body into WASM instructions.

Emits:

1. call init — reset state to defaults
2. Compiled test body statements