Place regression tests beside related syntax cases

tests/sqlparser_sqlite.rs

diff --git a/tests/sqlparser_sqlite.rs b/tests/sqlparser_sqlite.rs
index 8b1e6db..b5552ef 100644
--- a/tests/sqlparser_sqlite.rs
+++ b/tests/sqlparser_sqlite.rs
@@ -1225,6 +1225,36 @@
     );
 }
 
+fn sqlite() -> TestedDialects {
+    TestedDialects::new(vec![Box::new(SQLiteDialect {})])
+}
+
+fn sqlite_with_options(options: ParserOptions) -> TestedDialects {
+    TestedDialects::new_with_options(vec![Box::new(SQLiteDialect {})], options)
+}
+
+fn sqlite_and_generic() -> TestedDialects {
+    TestedDialects::new(vec![
+        Box::new(SQLiteDialect {}),
+        Box::new(GenericDialect {}),
+    ])
+}
+
+#[test]
+fn test_dollar_sign_in_identifier() {
+    // SQLite allows $ anywhere after the first character of an identifier
+    sqlite().verified_stmt("SELECT a$ FROM t");
+    sqlite().verified_stmt("SELECT 1 AS a$");
+    sqlite().one_statement_parses_to("CREATE TABLE t(a$ INT)", "CREATE TABLE t (a$ INT)");
+    sqlite().verified_stmt("INSERT INTO t$ VALUES (1)");
+    // AS$ is parsed as the alias name
+    sqlite().one_statement_parses_to("SELECT a AS$", "SELECT a AS AS$");
+    // Dialects without $ as an identifier character still reject these identifiers
+    TestedDialects::new(vec![Box::new(AnsiDialect {})])
+        .parse_sql_statements("SELECT a$ FROM t")
+        .unwrap_err();
+}
+
 #[test]
 fn parse_comparison_binds_tighter_than_equality() {
     let id = |name: &str| Expr::Identifier(Ident::new(name));
@@ -1297,36 +1327,6 @@
     );
 }
 
-fn sqlite() -> TestedDialects {
-    TestedDialects::new(vec![Box::new(SQLiteDialect {})])
-}
-
-fn sqlite_with_options(options: ParserOptions) -> TestedDialects {
-    TestedDialects::new_with_options(vec![Box::new(SQLiteDialect {})], options)
-}
-
-fn sqlite_and_generic() -> TestedDialects {
-    TestedDialects::new(vec![
-        Box::new(SQLiteDialect {}),
-        Box::new(GenericDialect {}),
-    ])
-}
-
-#[test]
-fn test_dollar_sign_in_identifier() {
-    // SQLite allows $ anywhere after the first character of an identifier
-    sqlite().verified_stmt("SELECT a$ FROM t");
-    sqlite().verified_stmt("SELECT 1 AS a$");
-    sqlite().one_statement_parses_to("CREATE TABLE t(a$ INT)", "CREATE TABLE t (a$ INT)");
-    sqlite().verified_stmt("INSERT INTO t$ VALUES (1)");
-    // AS$ is parsed as the alias name
-    sqlite().one_statement_parses_to("SELECT a AS$", "SELECT a AS AS$");
-    // Dialects without $ as an identifier character still reject these identifiers
-    TestedDialects::new(vec![Box::new(AnsiDialect {})])
-        .parse_sql_statements("SELECT a$ FROM t")
-        .unwrap_err();
-}
-
 #[test]
 fn parse_bitwise_and_or_share_precedence() {
     fn num(n: &str) -> Expr {