Fix bug in parsing of super expression (#1364)

Author: stackoverflow

pkl-core/src/test/files/LanguageSnippetTests/input/parser/spread.pkl

@@ -0,0 +1,15 @@
+
+local baz = new Dynamic {}
+
+local foo = new Dynamic {
+  bar = 1
+}
+
+qux {
+  (foo) {
+    ...super.bar
+    (baz) {
+      qux = 1
+    }
+  }
+}

pkl-core/src/test/files/LanguageSnippetTests/output/parser/spread.pcf

@@ -0,0 +1,8 @@
+qux {
+  new {
+    bar = 1
+    new {
+      qux = 1
+    }
+  }
+}

pkl-parser/src/main/java/org/pkl/parser/Parser.java

@@ -973,7 +973,9 @@ yield switch (lookahead) {
             if (lookahead == Token.DOT) {
               next();
               var identifier = parseIdentifier();
-              if (lookahead == Token.LPAREN) {
+              if (lookahead == Token.LPAREN
+                  && !precededBySemicolon
+                  && _lookahead.newLinesBetween == 0) {
                 var args = parseArgumentList();
                 yield new SuperAccessExpr(identifier, args, start.endWith(args.span()));
               } else {