Merge changes from topics "openjdk11-java.lang.INteger-toUnsignedString0", "openjdk11-java.lang.Integer-parseInt_CharSequence", "openjdk11-java.lang.Integer-parseUnsignedInt", "openjdk11-java.lang.Integer-toString_helpers", "openjdk11-java.lang.Long-parseUnsignedLong_CharSequence", "openjdk11-java.lang.Long-toString_long", "openjdk11-java.lang.Long-toUnsignedString0" am: ef16b51b4e

Original change: https://android-review.googlesource.com/c/platform/libcore/+/1904169

Change-Id: I67a2e44709b9380398647d7514d763b4163f4ef7