RFR: 8330851: C2: More efficient TypeFunc creation [v9]

[Amit Kumar]

> Lazy computation of TypeFunc.
> 
> Testing: Tier1 on Fastdebug & Release VMs (`s390x architecture`)

Amit Kumar has updated the pull request incrementally with one additional commit since the last revision:

  fixes code style

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/21782/files
  - new: https://git.openjdk.org/jdk/pull/21782/files/22d97e4c..7e77d69d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21782&range=08
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21782&range=07-08

  Stats: 92 lines in 2 files changed: 2 ins; 0 del; 90 mod
  Patch: https://git.openjdk.org/jdk/pull/21782.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21782/head:pull/21782

PR: https://git.openjdk.org/jdk/pull/21782