OpenJDK 11: Merging in java.lang.String (lines() method)

This is part of merging upstream changes from OpenJDK 11.28. This CL
increments vtable_entries count for newly added lines() method in
String class; and updates test expectations for 100-reflect2 test.

Bug: 202962059
Test: art/test/testrunner/testrunner.py --host -b -t 100-reflect2
Test: atest CtsLibcoreOjTestCases:test.java.lang.String.Lines
Change-Id: I06b3ee113af0824b198e77110da4c847a1a2b8ff
2 files changed