Groovy: fix parsing of method calls on int literals (#7493)

Author: greg-at-moderne

rewrite-groovy/src/main/java/org/openrewrite/groovy/GroovyParserVisitor.java

@@ -1668,7 +1668,7 @@ public void visitConstantExpression(ConstantExpression expression) {
                     }
                     for (; i < source.length(); i++) {
                         char c = source.charAt(i);
-                        if (!(isJavaIdentifierPart(c) || (c == '.' && source.length() > (i + 1) && isJavaIdentifierPart(source.charAt(i + 1))))) {
+                        if (!(isJavaIdentifierPart(c) || (c == '.' && source.length() > (i + 1) && Character.isDigit(source.charAt(i + 1))))) {
                             break;
                         }
                     }

rewrite-groovy/src/test/java/org/openrewrite/groovy/tree/MethodInvocationTest.java

@@ -67,6 +67,13 @@ void emptyArgsWithParens() {
         );
     }
 
+    @Test
+    void closureArgumentOnNumericLiteralReceiver() {
+        rewriteRun(
+          groovy("50.times { 1 }")
+        );
+    }
+
     @Test
     void noParentheses() {
         rewriteRun(