Fix extendsOrImplements casts not working

Author: jaredlll08

CodeModel/src/main/java/org/openzen/zenscript/codemodel/compilation/CastedEval.java

@@ -83,8 +83,8 @@ public CastedExpression of(Expression value) {
 				return result;
 		}
 
-		//if (extendsOrImplements(type))
-		//	return CastedExpression.implicit(new SupertypeCastExpression(position, value, type));
+		if (this.type.extendsOrImplements(value.type, compiler.getAvailableExpansions()))
+			return CastedExpression.implicit(new SupertypeCastExpression(position, value, type));
 
 		if (explicit) {
 			Optional<Expression> casted = compiler.resolve(value.type).tryCastExplicit(type, compiler, position, value, optional);

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

@@ -1206,6 +1206,7 @@ private FunctionCastWrapperClass generateFunctionCastWrapperClass(CodePosition p
 	@Override
 	public Void visitSupertypeCast(SupertypeCastExpression expression) {
 		expression.value.accept(this);
+		javaWriter.checkCast(context.getType(expression.type));
 		return null; // nothing to do
 	}