[python] PY-80436 support ellipsis

GitOrigin-RevId: 82e38fcb502ed68d5676f2cc774ef2653d69febb

python/python-psi-api/src/com/jetbrains/python/psi/PyElementGenerator.java

@@ -142,7 +142,7 @@ public abstract class PyElementGenerator extends PyAstElementGenerator {
                                                           @NotNull String name,
                                                           @Nullable String alias);
 
-  public abstract @NotNull PyNoneLiteralExpression createEllipsis();
+  public abstract @NotNull PyEllipsisLiteralExpression createEllipsis();
 
   public abstract @NotNull PySingleStarParameter createSingleStarParameter();
 

python/python-psi-api/src/com/jetbrains/python/psi/PyElementVisitor.java

@@ -282,6 +282,10 @@ public class PyElementVisitor extends PsiElementVisitor {
     visitPyElement(node);
   }
 
+  public void visitPyEllipsisLiteralExpression(@NotNull PyEllipsisLiteralExpression node) {
+    visitPyElement(node);
+  }
+
   public void visitPyBoolLiteralExpression(@NotNull PyBoolLiteralExpression node) {
     visitPyElement(node);
   }

python/python-psi-api/src/com/jetbrains/python/psi/PyEllipsisLiteralExpression.kt

@@ -0,0 +1,9 @@
+// Copyright 2000-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+package com.jetbrains.python.psi
+
+import com.jetbrains.python.ast.PyAstEllipsisLiteralExpression
+
+/**
+ * Used for literal ellipsis (`...`).
+ */
+interface PyEllipsisLiteralExpression : PyAstEllipsisLiteralExpression, PyLiteralExpression

python/python-psi-api/src/com/jetbrains/python/psi/PyNoneLiteralExpression.kt

@@ -1,10 +1,6 @@
 // Copyright 2000-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
-package com.jetbrains.python.psi;
+package com.jetbrains.python.psi
 
-import com.jetbrains.python.ast.PyAstNoneLiteralExpression;
+import com.jetbrains.python.ast.PyAstNoneLiteralExpression
 
-/**
- * Used for literal None and literal ... (Ellipsis).
- */
-public interface PyNoneLiteralExpression extends PyAstNoneLiteralExpression, PyLiteralExpression {
-}
+interface PyNoneLiteralExpression : PyAstNoneLiteralExpression, PyLiteralExpression