RFR: 8241192: [macosx] Wrong letter typed after ´ symbol when using Finnish layout

[Prasanta Sadhukhan]

If we press " ´ " (on U.S. keyboard layout it is the [+] button just before the [delete] button), and then press "s" , 2 "´" characters are entered in a text field instead of "´s" with "Finish" keyboard layout.
This is because, although " ´ " is construed as "complex" char and inserted properly the next "s" character is treated as non-complex character as it's utf8Length is 1 and utf16Length is 2, so we need to explicitly make it a "complex" char sequence if the code point is 0x73 ie "s" in Finnish layout for it to be inserted properly.

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Commit messages:
 - 8241192: [macosx] Wrong letter typed after ´ symbol when using Finnish layout
 - 8241192: [macosx] Wrong letter typed after ´ symbol when using Finnish layout

Changes: https://git.openjdk.java.net/jdk/pull/7262/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7262&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8241192
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7262.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7262/head:pull/7262

PR: https://git.openjdk.java.net/jdk/pull/7262