checker: fix typeof of typeof.name (vlang#19323)

vlib/v/gen/c/comptime.v

@@ -795,7 +795,7 @@ fn (mut g Gen) get_comptime_var_type(node ast.Expr) ast.Type {
 fn (mut g Gen) resolve_comptime_type(node ast.Expr, default_type ast.Type) ast.Type {
 	if (node is ast.Ident && g.is_comptime_var(node)) || node is ast.ComptimeSelector {
 		return g.get_comptime_var_type(node)
-	} else if node is ast.SelectorExpr {
+	} else if node is ast.SelectorExpr && node.expr_type != 0 {
 		sym := g.table.sym(g.unwrap_generic(node.expr_type))
 		if f := g.table.find_field_with_embeds(sym, node.field_name) {
 			return f.typ

vlib/v/tests/typeof_name_test.v

@@ -0,0 +1,6 @@
+fn test_main() {
+	pi := 3.14
+	type_ := typeof(pi).name
+	assert typeof(type_).name == 'string'
+	assert typeof(typeof(pi).name).name == 'string'
+}