tests: Add tests for reanme fix in v2 (#2196)

internal/endtoend/testdata/rename/v2/pgx/v4/query.sql

@@ -0,0 +1,12 @@
+CREATE TYPE ip_protocol AS enum('tcp', 'ip', 'icmp');
+
+CREATE TABLE bar_old (id_old serial not null, ip_old ip_protocol NOT NULL);
+
+-- name: ListFoo :many
+SELECT id_old as foo_old, id_old as baz_old
+FROM bar_old
+WHERE ip_old = $1 AND id_old = $2;
+
+-- name: ListBar :many
+SELECT * FROM bar_old;
+

internal/endtoend/testdata/rename/v2/pgx/v4/sqlc.json

@@ -0,0 +1,24 @@
+{
+  "version": "2",
+  "sql": [
+    {
+      "schema": "query.sql",
+      "queries": "query.sql",
+      "engine": "postgresql",
+      "gen": {
+        "go": {
+          "sql_package": "pgx/v4",
+          "package": "querytest",
+          "out": "go",
+          "rename": {
+            "id_old": "IDNew",
+            "bar_old": "BarNew",
+            "foo_old": "FooNew",
+            "ip_protocol": "IPProtocol",
+            "ip_protocol_tcp": "IPProtocolTCP"
+          }
+        }
+      }
+    }
+  ]
+}

internal/endtoend/testdata/rename/v2/pgx/v5/query.sql

@@ -0,0 +1,12 @@
+CREATE TYPE ip_protocol AS enum('tcp', 'ip', 'icmp');
+
+CREATE TABLE bar_old (id_old serial not null, ip_old ip_protocol NOT NULL);
+
+-- name: ListFoo :many
+SELECT id_old as foo_old, id_old as baz_old
+FROM bar_old
+WHERE ip_old = $1 AND id_old = $2;
+
+-- name: ListBar :many
+SELECT * FROM bar_old;
+