RFR: 8337702: Use new ForwardExceptionNode to call StubRoutines::forward_exception_entry()

[Vladimir Kozlov]

Currently C2 uses `TailCall` node when it generates code to forward exception in C2 runtime stubs.
`StubRoutines::forward_exception_entry()` address is passed as constant and  method pointer is `NULL`: 
[generateOptoStub.cpp#L258](https://github.com/openjdk/jdk/blob/master/src/hotspot/share/opto/generateOptoStub.cpp#L258)

On other hand TailCall mach node uses 2 registers as parameter which is hardcoded in `Matcher`: [matcher.cpp#L828](https://github.com/openjdk/jdk/blob/master/src/hotspot/share/opto/matcher.cpp#L828)
As result we waste two registers to pass constant and NULL.

Also incorrect relocation is used for such call because the address of `forward_exception` stub passed in register in mach node. When it is converted to `Address` for `jmp` instruction the default `external_word_type` relocation is used when `runtime_call_type` should be used. See discussion in PR [JDK-8337396](https://github.com/openjdk/jdk/pull/20412)

I added new ideal node `ForwardExceptionNode` to solve these issues. It is similar to `Rethrow` node (which mach node definition I used as template) but I kept it based on `Return` node similar to `TailCall` node.

Tested tier1-3,stress,xcomp

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Commit messages:
 - 8337702: Use new ForwardExceptionNode to call StubRoutines::forward_exception_entry()

Changes: https://git.openjdk.org/jdk/pull/20437/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20437&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8337702
  Stats: 150 lines in 14 files changed: 128 ins; 1 del; 21 mod
  Patch: https://git.openjdk.org/jdk/pull/20437.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20437/head:pull/20437

PR: https://git.openjdk.org/jdk/pull/20437