RFR: 6542: Improve calls to render in the flame view [v8]

[Miroslav Wengner]

> stable flameview generation

Miroslav Wengner has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev
excludes the unrelated changes brought in by the merge/rebase. The pull request contains 19 additional commits since
the last revision:

 - 6542: partial commit
 - Merge branch 'master' of https://github.com/openjdk/jmc into feature/6542_Improve_calls_to_render_in_the_flame_view
 - 6542: cleanup
 - 6542: partial commit stable
 - Merge branch 'master' of https://github.com/openjdk/jmc into feature/6542_Improve_calls_to_render_in_the_flame_view
 - Merge branch 'master' into feature/6542_Improve_calls_to_render_in_the_flame_view
 - 6542: correction spotless
 - 6542: clean up, correction
 - 6542: partial update
 - 6542: flameview cancelling
 - ... and 9 more: https://git.openjdk.java.net/jmc/compare/665b1118...1821950e

-------------

Changes:
  - all: https://git.openjdk.java.net/jmc/pull/78/files
  - new: https://git.openjdk.java.net/jmc/pull/78/files/bf84149c..1821950e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jmc&pr=78&range=07
 - incr: https://webrevs.openjdk.java.net/?repo=jmc&pr=78&range=06-07

  Stats: 4315 lines in 60 files changed: 4108 ins; 128 del; 79 mod
  Patch: https://git.openjdk.java.net/jmc/pull/78.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/78/head:pull/78

PR: https://git.openjdk.java.net/jmc/pull/78