Implemented SuperTypeCast for ExpressionVisitor

JavaBytecodeCompiler/src/main/java/org/openzen/zenscript/javabytecode/compiler/JavaExpressionVisitor.java

 
 	@Override
 	public Void visitSetter(SetterExpression expression) {
+		if(!checkAndExecuteMethodInfo(expression.setter, expression.type, expression)) {
+			throw new IllegalStateException("Unknown Setter");
+		}
 		return null;
 	}
 
 
 	@Override
 	public Void visitSupertypeCast(SupertypeCastExpression expression) {
+		expression.value.accept(this);
 		return null; // nothing to do
 	}