RFR: 8264004: Don't use TRAPS if no exceptions are thrown [v3]

[Coleen Phillimore]

> 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:

  Fix some obvious single use variables.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3141/files
  - new: https://git.openjdk.java.net/jdk/pull/3141/files/1e3f00d4..36006162

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3141&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3141&range=01-02

  Stats: 14 lines in 1 file changed: 0 ins; 7 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3141.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3141/head:pull/3141

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