fix(TransPyV): 修正形参/字段链节点的注解为 llvmlite.ParamNode*

c 类（源码违规）：这些变量由 new_param_node 构造、或取自 get_struct_fields /

param_list_append / function_get_param_head，实际是 llvmlite.ParamNode 链节点，

注解却写成 llvmlite.Function*。旧的无条件指针 bitcast 掩盖了该错误，严格指针规则下暴露。

涉及：VarGenMixin / CallGenVt / VpiReader / ClassGenEnum / ClassGenVTable /

ExprGenName / FuncGenMixin / FuncGenDef / TypeGenResolve / TypeSpec /

StmtGenCifMixin / AssignGenMixin（纯注解替换，零语义变化）。15 行。

App/lib/core/Gen/Class/ClassGenEnum.vp

@@ -956,15 +956,15 @@ novirtual class ClassGenEnum(ClassGenBase.ClassGenBase):
         i32_ty: llvmlite.LLVMType* = llvmlite.Int32(pool)
         i64_ty: llvmlite.LLVMType* = llvmlite.Int64(pool)
 
-        first_node: llvmlite.Function* = None
-        tail_node: llvmlite.Function* = None
+        first_node: llvmlite.ParamNode* = None
+        tail_node: llvmlite.ParamNode* = None
 
         for pos in range(total_positions):
             psize: int = position_max_sizes[pos]
             field_ty: llvmlite.LLVMType* = i32_ty
             if psize > 4:
                 field_ty = i64_ty
-            pnode: llvmlite.Function* = llvmlite.new_param_node(pool, field_ty)
+            pnode: llvmlite.ParamNode* = llvmlite.new_param_node(pool, field_ty)
             if pnode is None:
                 continue
             tail_node = llvmlite.param_list_append(first_node, tail_node, pnode)

App/lib/core/Gen/Class/ClassGenVTable.vp

@@ -305,10 +305,10 @@ novirtual class ClassGenVTable(ClassGenBase.ClassGenBase):
         i8_ty: llvmlite.LLVMType* = llvmlite.Int8(pool)
         i8_ptr_ty: llvmlite.LLVMType* = llvmlite.Ptr(pool, i8_ty)
 
-        first_node: llvmlite.Function* = None
-        tail_node: llvmlite.Function* = None
+        first_node: llvmlite.ParamNode* = None
+        tail_node: llvmlite.ParamNode* = None
         for i in range(method_count):
-            pnode: llvmlite.Function* = llvmlite.new_param_node(pool, i8_ptr_ty)
+            pnode: llvmlite.ParamNode* = llvmlite.new_param_node(pool, i8_ptr_ty)
             if pnode is None:
                 continue
             tail_node = llvmlite.param_list_append(first_node, tail_node, pnode)
@@ -1120,10 +1120,10 @@ novirtual class ClassGenVTable(ClassGenBase.ClassGenBase):
                 vt_i8_ty: llvmlite.LLVMType* = llvmlite.Int8(pool)
                 vt_i8_ptr_ty: llvmlite.LLVMType* = llvmlite.Ptr(pool, vt_i8_ty)
 
-                vt_first_node: llvmlite.Function* = None
-                vt_prev_node: llvmlite.Function* = None
+                vt_first_node: llvmlite.ParamNode* = None
+                vt_prev_node: llvmlite.ParamNode* = None
                 for vti in range(vt_method_count):
-                    vtnode: llvmlite.Function* = llvmlite.new_param_node(pool, vt_i8_ptr_ty)
+                    vtnode: llvmlite.ParamNode* = llvmlite.new_param_node(pool, vt_i8_ptr_ty)
                     if vtnode is None:
                         continue
                     if vt_first_node is None: