Add number size checks for IonParser getIntValue and getLongValue. Fix failing tests for FasterXML#428

Author: aid270

ion/src/main/java/com/fasterxml/jackson/dataformat/ion/IonParser.java

@@ -400,7 +400,22 @@ public int getIntValue() throws IOException {
     // @since 2.17
     private int _getIntValue() throws IOException {
         try {
-            return _reader.intValue();
+            if (getNumberType() == NumberType.LONG) {
+                int result = _reader.intValue();
+                if ((long) result != _reader.longValue()) {
+                    this.reportOverflowInt();
+                }
+                return result;
+            }
+            if (getNumberType() == NumberType.BIG_INTEGER) {
+                BigInteger bigInteger = _reader.bigIntegerValue();
+                if (BI_MIN_INT.compareTo(bigInteger) > 0 || BI_MAX_INT.compareTo(bigInteger) < 0) {
+                    this.reportOverflowInt();
+                }
+                return bigInteger.intValue();
+            } else {
+                return _reader.intValue();
+            }
         } catch (IonException
                 // 15-Jan-2024, tatu: other OSS-Fuzz tests suggest we need this:
                 | ArrayIndexOutOfBoundsException e) {
@@ -417,7 +432,15 @@ public long getLongValue() throws IOException {
     // @since 2.17
     private long _getLongValue() throws IOException {
         try {
-            return _reader.longValue();
+            if (this.getNumberType() == NumberType.BIG_INTEGER) {
+                BigInteger bigInteger = _reader.bigIntegerValue();
+                if (BI_MIN_INT.compareTo(bigInteger) > 0 || BI_MAX_INT.compareTo(bigInteger) < 0) {
+                    this.reportOverflowLong();
+                }
+                return bigInteger.longValue();
+            } else {
+                return _reader.longValue();
+            }
         } catch (IonException
                 // 14-Jan-2024, tatu: OSS-Fuzz#65731 points to AIOOBE:
                 | ArrayIndexOutOfBoundsException e) {