Misc. improvements

• Emit non-zero array constants properly
• Emit only actually used array constants per runtime wrapper
• Juno CLI
• Use repr(C) structs for product types
• Minimal implementation of SROA
• TODO: inlining, codegen cast, intrinsics, dynamic constant math

hercules_cg/src/top.rs

@@ -185,6 +185,12 @@ impl<'a> FunctionContext<'a> {
             param_types: self.function.param_types.clone(),
             return_type: self.function.return_type,
             typing: self.typing.clone(),
+            used_constants: self
+                .function
+                .nodes
+                .iter()
+                .filter_map(|node| node.try_constant())
+                .collect(),
             num_dynamic_constant_parameters: self.function.num_dynamic_constants,
             partitions: manifests,
             // TODO: populate dynamic constant rules.