Merge branch 'more-syntax-tests' into 'master'

Add two more invalid tests cases

See merge request IPDSnelting/mjtest-tests!28

syntax/incomplete_array_access_statement.invalid.mj

+class IncompleteArrayAccessStatement {
+    public void test() {
+        test[

syntax/incomplete_new_statement.invalid.mj

+class IncompleteNewStatement {
+    public void test() {
+        new