RFR: 8371194: serviceability/sa/TestJhsdbJstackMixedWithXComp.java failing [v4]

[Yasumasa Suenaga]

> We've fixed mixed mode jstack for the debuggee running with `-Xcomp` in [JDK-8370176](https://bugs.openjdk.org/browse/JDK-8370176), but it was not enough. We need to handle like unifying `CFrame` and `Frame` in stack unwinding as possible, and need to change how to get caller SP/FP from stack.
> 
> This PR works fine on both Linux AMD64 and Linux AArch64. All of `hotspot/jtreg/serviceability/sa` tests have been passed on both platforms.
> 
> Big thanks to @pchilano for your help!

Yasumasa Suenaga has updated the pull request incrementally with one additional commit since the last revision:

  Update src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/debugger/bsd/BsdDebuggerLocal.java
  
  Co-authored-by: Chris Plummer <chris.plummer at oracle.com>

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28284/files
  - new: https://git.openjdk.org/jdk/pull/28284/files/bb2fe02f..0b7c187a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28284&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28284&range=02-03

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/28284.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28284/head:pull/28284

PR: https://git.openjdk.org/jdk/pull/28284