decomp: finish target-[util|darkjak|swim|gun] | water | water-anim | crates | dark-eco-pool, fix skelgroup detection, add failed store/load warnings and clean up jak 3 config (#1958)

Almost done:
- `target-handler` (`(none)` event handler casts and CFG error)
- `target2` (`(none)` event handler casts)
- `powerups` (`cloud-track` does some weird stuff with `handle`s)
- `gun-states` (CFG error)

Some progress in:
- `water-flow`

Additionally:

- Clean up the two year old Jak 3 config file and add a config skeleton
(disassembling seems to not have worked, but I was able to dump obj
files and the `all_scripts` file)
- Fix automatic skelgroup detection and `defskelgroup` macro for Jak 2
(closes #1950)
- When a function decompiles without any major errors, a warning is
generated with the op id for each unresolved load and store that will
likely fail to compile (closes #1933)

decompiler/IR2/AtomicOpForm.cpp

@@ -475,6 +475,10 @@ FormElement* StoreOp::get_as_form(FormPool& pool, const Env& env) const {
       }
     }
   }
+  // print warning about failed store, but only if decompilation passes without any major errors
+  if (!env.func->warnings.has_errors()) {
+    env.func->warnings.warning("Failed store: {} at op {}", to_string(env), m_my_idx);
+  }
   return pool.alloc_element<StoreElement>(this);
 }
 
@@ -733,6 +737,9 @@ Form* LoadVarOp::get_load_src(FormPool& pool, const Env& env) const {
       // LoadSourceElement::update_from_stack, which needs expressions)
       auto source =
           pool.alloc_single_element_form<SimpleExpressionElement>(nullptr, m_src, m_my_idx);
+      if (!env.func->warnings.has_errors()) {
+        env.func->warnings.warning("Failed load: {} at op {}", to_string(env), m_my_idx);
+      }
       return pool.alloc_single_element_form<LoadSourceElement>(nullptr, source, m_size, m_kind, ro,
                                                                input_type);
     }
@@ -746,6 +753,9 @@ Form* LoadVarOp::get_load_src(FormPool& pool, const Env& env) const {
   }
 
   auto source = pool.alloc_single_element_form<SimpleExpressionElement>(nullptr, m_src, m_my_idx);
+  if (!env.func->warnings.has_errors()) {
+    env.func->warnings.warning("Failed load: {} at op {}", to_string(env), m_my_idx);
+  }
   return pool.alloc_single_element_form<LoadSourceElement>(
       nullptr, source, m_size, m_kind, std::optional<IR2_RegOffset>{}, TP_Type());
 }