Fix GLSL frontend clippy error

src/front/glsl/error.rs

@@ -26,7 +26,7 @@ pub enum ExpectedToken {
     IntLiteral,
     FloatLiteral,
     BoolLiteral,
-    EOF,
+    Eof,
 }
 impl From<TokenValue> for ExpectedToken {
     fn from(token: TokenValue) -> Self {
@@ -42,7 +42,7 @@ impl std::fmt::Display for ExpectedToken {
             ExpectedToken::IntLiteral => write!(f, "integer literal"),
             ExpectedToken::FloatLiteral => write!(f, "float literal"),
             ExpectedToken::BoolLiteral => write!(f, "bool literal"),
-            ExpectedToken::EOF => write!(f, "end of file"),
+            ExpectedToken::Eof => write!(f, "end of file"),
         }
     }
 }

src/front/glsl/parser.rs

@@ -427,8 +427,8 @@ impl<'source, 'program, 'options> Parser<'source, 'program, 'options> {
                 TokenValue::Semicolon if self.program.version == 460 => Ok(()),
                 _ => {
                     let expected = match self.program.version {
-                        460 => vec![TokenValue::Semicolon.into(), ExpectedToken::EOF],
-                        _ => vec![ExpectedToken::EOF],
+                        460 => vec![TokenValue::Semicolon.into(), ExpectedToken::Eof],
+                        _ => vec![ExpectedToken::Eof],
                     };
                     Err(ErrorKind::InvalidToken(token, expected))
                 }

src/front/glsl/parser_tests.rs

@@ -56,7 +56,7 @@ fn version() {
                 value: TokenValue::Unknown(PreprocessorError::UnexpectedHash),
                 meta: SourceMetadata { start: 24, end: 25 }
             },
-            vec![ExpectedToken::EOF]
+            vec![ExpectedToken::Eof]
         )
     );