v2: ssa fix

Author: medvednikov

vlib/v2/ssa/builder.v

@@ -6657,8 +6657,7 @@ fn (mut b Builder) build_go_or_spawn(expr ast.Expr, opcode OpCode) ValueID {
 			operands << arg_val
 		}
 
-		void_t := b.mod.type_store.get_void()
-		return b.mod.add_instr(opcode, b.cur_block, void_t, operands)
+		return b.mod.add_instr(opcode, b.cur_block, TypeID(0), operands)
 	}
 	// Fallback: just build the expression (shouldn't happen for well-formed code)
 	return b.build_expr(expr)

vlib/v2/transformer/expr.v

@@ -2742,8 +2742,9 @@ fn (mut t Transformer) lower_go_call(expr ast.KeywordOperator) ast.Expr {
 	mut receiver_expr := ast.empty_expr
 	mut receiver_type_name := ''
 	if call_lhs is ast.SelectorExpr {
-		sel_lhs := call_lhs.lhs
-		if !(sel_lhs is ast.Ident && t.is_module_name(sel_lhs.name)) {
+		sel := call_lhs as ast.SelectorExpr
+		sel_lhs := sel.lhs
+		if !(sel_lhs is ast.Ident && t.is_module_name((sel_lhs as ast.Ident).name)) {
 			is_method = true
 			receiver_expr = t.transform_expr(sel_lhs)
 			if recv_type := t.get_expr_type(sel_lhs) {

vlib/v2/transformer/transformer.v

@@ -9141,7 +9141,7 @@ fn (mut t Transformer) generate_go_wrapper_functions() []ast.Stmt {
 				]
 			})
 			// _args.field = param for each field
-			for i, pname in info.param_names {
+			for _, pname in info.param_names {
 				dispatch_stmts << ast.Stmt(ast.AssignStmt{
 					op:  .assign
 					lhs: [