RFR: 8292686: runtime/cds/appcds/TestWithProfiler.java SIGSEGV in TableStatistics ctr

[Coleen Phillimore]

There were two ConcurrentHashTable constructors that needed the non-default value of true in order to allocate TableRateStatistics in SymbolTable and StringTable, so I added them.  Default parameters are dangerous.  This is a trivial fix.
Tested tier 1-3 in progress.   Tested with failed test and JFR tests.

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Commit messages:
 - 8292686: runtime/cds/appcds/TestWithProfiler.java SIGSEGV in TableStatistics ctr

Changes: https://git.openjdk.org/jdk/pull/9952/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9952&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8292686
  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/9952.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9952/head:pull/9952

PR: https://git.openjdk.org/jdk/pull/9952