Add check for ALLOW_CASE_INSENSITIVE_PROPERTIES feature #1983

Author: alevskyi

src/main/java/com/fasterxml/jackson/databind/jsontype/impl/AsPropertyTypeDeserializer.java

@@ -90,8 +90,12 @@ public Object deserializeTypedFromObject(JsonParser p, DeserializationContext ct
         // Ok, let's try to find the property. But first, need token buffer...
         TokenBuffer tb = null;
 
+        boolean ignoreCase = ctxt.isEnabled(MapperFeature.ACCEPT_CASE_INSENSITIVE_PROPERTIES);
         for (; t == JsonToken.FIELD_NAME; t = p.nextToken()) {
             String name = p.getCurrentName();
+            if (ignoreCase) {
+                name = name.toLowerCase();
+            }
             p.nextToken(); // to point to the value
             if (name.equals(_typePropertyName)) { // gotcha!
                 return _deserializeTypedForId(p, ctxt, tb);

src/main/java/com/fasterxml/jackson/databind/jsontype/impl/TypeNameIdResolver.java

@@ -7,6 +7,7 @@
 import com.fasterxml.jackson.databind.BeanDescription;
 import com.fasterxml.jackson.databind.DatabindContext;
 import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.MapperFeature;
 import com.fasterxml.jackson.databind.cfg.MapperConfig;
 import com.fasterxml.jackson.databind.jsontype.NamedType;
 
@@ -138,6 +139,9 @@ public JavaType typeFromId(DatabindContext context, String id) {
     }
 
     protected JavaType _typeFromId(String id) {
+        if(_config.isEnabled(MapperFeature.ACCEPT_CASE_INSENSITIVE_PROPERTIES)) {
+            id = id.toLowerCase();
+        }
         // Now: if no type is found, should we try to locate it by
         // some other means? (specifically, if in same package as base type,
         // could just try Class.forName)