Remove "SQL" prefix from types

The rationale here is the same as the last commit: since this crate
exclusively parses SQL, there's no need to restate that in every type
name. (The prefix seems to be an artifact of this crate's history as a
submodule of Datafusion, where it was useful to explicitly call out
which types were related to SQL parsing.)

This commit has the additional benefit of making all type names
consistent; over type we'd added some types which were not prefixed with
"SQL".

examples/cli.rs

@@ -30,10 +30,10 @@ fn main() {
     );
 
     let dialect: Box<dyn Dialect> = match std::env::args().nth(2).unwrap_or_default().as_ref() {
-        "--ansi" => Box::new(AnsiSqlDialect {}),
+        "--ansi" => Box::new(AnsiDialect {}),
         "--postgres" => Box::new(PostgreSqlDialect {}),
         "--ms" => Box::new(MsSqlDialect {}),
-        "--generic" | "" => Box::new(GenericSqlDialect {}),
+        "--generic" | "" => Box::new(GenericDialect {}),
         s => panic!("Unexpected parameter: {}", s),
     };
 

examples/parse_select.rs

@@ -12,7 +12,7 @@
 
 #![warn(clippy::all)]
 
-use sqlparser::dialect::GenericSqlDialect;
+use sqlparser::dialect::GenericDialect;
 use sqlparser::parser::*;
 
 fn main() {
@@ -21,7 +21,7 @@ fn main() {
                WHERE a > b AND b < 100 \
                ORDER BY a DESC, b";
 
-    let dialect = GenericSqlDialect {};
+    let dialect = GenericDialect {};
 
     let ast = Parser::parse_sql(&dialect, sql.to_string()).unwrap();