Add semantic test

d5164146 · Johannes Bechberger · andreas.fried · f7dde133 · d5164146
Commit d5164146 authored Oct 19, 2018 by Johannes Bechberger Committed by andreas.fried Oct 19, 2018
--- a/semantic/unknown_variable.invalid.mj
+++ b/semantic/unknown_variable.invalid.mj
+class UnknownVariable {
+  public void main(String[] args){
+    System.out.println(a);
+  }
+}