RFR: 8249144: Potential memory leak in TypedMethodOptionMatcher

[Zhengyu Gu]

TypedMethodOptionMatcher owns ccstr value (vs. os::strdup_check_oom()), but never frees it in destructor.

It does not appear to a real issue so far, because TypedMethodOptionMatcher seems immortal. Given it releases _option 
string, it should also release ccstr value.

This patch has been reviewed https://mail.openjdk.java.net/pipermail/hotspot-dev/2020-July/042356.html, but I lost track of it during repo migration.

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Commit messages:
 - 8249144: Potential memory leak in TypedMethodOptionMatcher

Changes: https://git.openjdk.java.net/jdk/pull/1353/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1353&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8249144
  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1353.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1353/head:pull/1353

PR: https://git.openjdk.java.net/jdk/pull/1353