RFR: 8258074: Move some flags related to compiler to compiler_globals.hpp [v2]

[Ioi Lam]

> Many flags in globals.hpp are related to the compiler, and are mostly used only by the compiler source files. These flags should be moved to compiler_globals.hpp
> 
> Examples:
> 
> - CompileCommandFile
> - Tier2CompileThreshold
> - HugeMethodLimit
> 
> This speeds up HotSpot build time, and improves modularity.
> 
> This RFE is the first step -- it moves a few dozen flags that are straight-forward to move. Other flags may be moved by follow-up RFEs.

Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:

  fixed gtest

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1746/files
  - new: https://git.openjdk.java.net/jdk/pull/1746/files/d6718880..c218bd66

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1746&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1746&range=00-01

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1746.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1746/head:pull/1746

PR: https://git.openjdk.java.net/jdk/pull/1746