Fix maps expecting a class instead of an interface

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

 	private static final JavaMethod ENUM_NAME = JavaMethod.getNativeVirtual(JavaClass.ENUM, "name", "()Ljava/lang/String;");
 	private static final JavaMethod ENUM_ORDINAL = JavaMethod.getNativeVirtual(JavaClass.ENUM, "ordinal", "()I");
 	private static final JavaMethod HASHMAP_INIT = JavaMethod.getNativeConstructor(JavaClass.HASHMAP, "()V");
-	private static final JavaMethod MAP_GET = JavaMethod.getNativeVirtual(JavaClass.MAP, "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
-	private static final JavaMethod MAP_PUT = JavaMethod.getNativeVirtual(JavaClass.MAP, "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
-	private static final JavaMethod MAP_PUT_ALL = JavaMethod.getNativeVirtual(JavaClass.MAP, "putAll", "(Ljava/util/Map;)V");
-	private static final JavaMethod MAP_CONTAINS_KEY = JavaMethod.getNativeVirtual(JavaClass.MAP, "containsKey", "(Ljava/lang/Object;)Z");
-	private static final JavaMethod MAP_SIZE = JavaMethod.getNativeVirtual(JavaClass.MAP, "size", "()I");
-	private static final JavaMethod MAP_ISEMPTY = JavaMethod.getNativeVirtual(JavaClass.MAP, "isEmpty", "()Z");
-	private static final JavaMethod MAP_KEYS = JavaMethod.getNativeVirtual(JavaClass.MAP, "keys", "()Ljava/lang/Object;");
-	private static final JavaMethod MAP_VALUES = JavaMethod.getNativeVirtual(JavaClass.MAP, "values", "()Ljava/lang/Object;");
+	private static final JavaMethod MAP_GET = JavaMethod.getInterface(JavaClass.HASHMAP, "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
+	private static final JavaMethod MAP_PUT = JavaMethod.getInterface(JavaClass.MAP, "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
+	private static final JavaMethod MAP_PUT_ALL = JavaMethod.getInterface(JavaClass.MAP, "putAll", "(Ljava/util/Map;)V");
+	private static final JavaMethod MAP_CONTAINS_KEY = JavaMethod.getInterface(JavaClass.MAP, "containsKey", "(Ljava/lang/Object;)Z");
+	private static final JavaMethod MAP_SIZE = JavaMethod.getInterface(JavaClass.MAP, "size", "()I");
+	private static final JavaMethod MAP_ISEMPTY = JavaMethod.getInterface(JavaClass.MAP, "isEmpty", "()Z");
+	private static final JavaMethod MAP_KEYS = JavaMethod.getInterface(JavaClass.MAP, "keys", "()Ljava/lang/Object;");
+	private static final JavaMethod MAP_VALUES = JavaMethod.getInterface(JavaClass.MAP, "values", "()Ljava/lang/Object;");
 	private static final JavaMethod ARRAYS_COPY_OF_RANGE_OBJECTS = JavaMethod.getNativeStatic(JavaClass.ARRAYS, "copyOfRange", "([Ljava/lang/Object;II)[Ljava/lang/Object;");
 	private static final JavaMethod ARRAYS_COPY_OF_RANGE_BOOLS = JavaMethod.getNativeStatic(JavaClass.ARRAYS, "copyOfRange", "([ZII)[Z");
 	private static final JavaMethod ARRAYS_COPY_OF_RANGE_BYTES = JavaMethod.getNativeStatic(JavaClass.ARRAYS, "copyOfRange", "([BII)[B");

JavaShared/src/main/java/org/openzen/zenscript/javashared/JavaMethod.java

 	public static JavaMethod getNativeVirtual(JavaClass cls, String name, String descriptor) {
 		return new JavaMethod(cls, Kind.INSTANCE, name, false, descriptor, JavaModifiers.PUBLIC, false);
 	}
+    
+    public static JavaMethod getInterface(JavaClass cls, String name, String descriptor) {
+        return new JavaMethod(cls, Kind.INTERFACE, name, false, descriptor, JavaModifiers.PUBLIC, false);
+    }
 
 	public static JavaMethod getNativeExpansion(JavaClass cls, String name, String descriptor) {
 		return new JavaMethod(cls, Kind.EXPANSION, name, false, descriptor, JavaModifiers.PUBLIC | JavaModifiers.STATIC, false);