Add overrides for [core#1211] (JsonParser.willInternPropertyNames()) (#681)

Author: cowtowncoder

avro/src/main/java/tools/jackson/dataformat/avro/AvroParser.java

@@ -94,6 +94,13 @@ public JacksonFeatureSet<StreamReadCapability> streamReadCapabilities() {
         return AVRO_READ_CAPABILITIES;
     }
 
+    // @since 3.2
+    // Avro property names are interned via InternCache in AvroFieldReader
+    @Override
+    public boolean willInternPropertyNames() {
+        return true;
+    }
+
     /*
     /**********************************************************************
     /* ParserBase method impls

cbor/src/main/java/tools/jackson/dataformat/cbor/CBORParser.java

@@ -345,6 +345,12 @@ public JacksonFeatureSet<StreamReadCapability> streamReadCapabilities() {
         return CBOR_READ_CAPABILITIES;
     }
 
+    // @since 3.2
+    @Override
+    public boolean willInternPropertyNames() {
+        return _symbols.willInternStrings();
+    }
+
     /*
     /**********************************************************************
     /* Extended API

ion/src/main/java/tools/jackson/dataformat/ion/IonParser.java

@@ -145,6 +145,13 @@ public JacksonFeatureSet<StreamReadCapability> streamReadCapabilities() {
         return ION_READ_CAPABILITIES;
     }
 
+    // @since 3.2
+    // Ion format does not intern property names
+    @Override
+    public boolean willInternPropertyNames() {
+        return false;
+    }
+
     /*
     /**********************************************************************
     /* JsonParser implementation: input state handling

protobuf/src/main/java/tools/jackson/dataformat/protobuf/ProtobufParser.java

@@ -328,6 +328,13 @@ public JacksonFeatureSet<StreamReadCapability> streamReadCapabilities() {
         return PROTOBUF_READ_CAPABILITIES;
     }
 
+    // @since 3.2
+    // Protobuf property names are interned via InternCache at schema construction
+    @Override
+    public boolean willInternPropertyNames() {
+        return true;
+    }
+
     /*
     /**********************************************************************
     /* Abstract impls, overrides: input handling

smile/src/main/java/tools/jackson/dataformat/smile/SmileParserBase.java

@@ -240,6 +240,12 @@ public JacksonFeatureSet<StreamReadCapability> streamReadCapabilities() {
         return SMILE_READ_CAPABILITIES;
     }
 
+    // @since 3.2
+    @Override
+    public boolean willInternPropertyNames() {
+        return _symbols.willInternStrings();
+    }
+
     public final boolean mayContainRawBinary() {
         return _mayContainRawBinary;
     }