create a new type class that represents the type of a struct

src/main/java/de/hsrm/compiler/Klang/types/StructType.java

@@ -0,0 +1,43 @@
+package de.hsrm.compiler.Klang.types;
+
+public class StructType extends Type {
+
+    public String name;
+
+    public StructType(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public String getName() {
+        return this.name;
+    }
+
+    @Override
+    public Type combine(Type that) {
+        if (that.equals(this)) {
+            return this;
+        }
+
+        throw new RuntimeException("Type missmatch: cannot combine " + this.getName() + " and " + that.getName());
+    }
+
+    @Override
+    public boolean isPrimitiveType() {
+        return false;
+    }
+
+    @Override
+    public boolean equals(Object that) {
+        if (this == that) {
+            return true;
+        }
+
+        if (that instanceof StructType) {
+            StructType thatType = (StructType) that;
+            return this.getName().equals(thatType.getName());
+        }
+
+        return false;
+    }
+}