update and fix the linker (#140)

crates/solidity/src/evmla/ethereal_ir/function/mod.rs

@@ -1163,7 +1163,7 @@ where
             self.name.as_str(),
             function_type,
             output_size,
-            Some(inkwell::module::Linkage::Private),
+            Some(inkwell::module::Linkage::External),
         )?;
         function
             .borrow_mut()

crates/solidity/src/yul/parser/statement/function_definition.rs

@@ -211,7 +211,7 @@ where
             self.identifier.as_str(),
             function_type,
             self.result.len(),
-            Some(inkwell::module::Linkage::Private),
+            Some(inkwell::module::Linkage::External),
         )?;
         revive_llvm_context::PolkaVMFunction::set_attributes(
             context.llvm(),