RFR: 8264004: Don't use TRAPS if no exceptions are thrown [v2]

[Ioi Lam]

On Tue, 23 Mar 2021 01:22:56 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Removed the TRAPS in function declarations in jvmtiRedefineClasses and in ConstantPool merging functions.
>> Tested with vmTestbase/nsk/jvmti and tier1 (in progress).
>
> Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   missed THREAD that should be CHECK_false argument.

LGTM. I think suggested TRAPS changes could be done in a separate REF.

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Marked as reviewed by iklam (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/3141