Revert "AbstractTypVar durch RefTypeORTPHOrWildcardOrGeneric ersetzt"

This reverts commit dfabf8ad71.

src/de/dhbwstuttgart/strucTypes5/typeVars/TypeVarAbstract.java

@@ -0,0 +1,17 @@
+package de.dhbwstuttgart.strucTypes5.typeVars;
+
+/**
+ * Created by sebastian on 14.04.17.
+ */
+public abstract class TypeVarAbstract {
+
+    public boolean equalsForUnify(TypeVarAbstract tv) {
+        if (tv.equals(this)) {
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+
+}