Integrated: 7902913: jasm incorrectly processes the instruction pair: ldc MethodHandle

[Leonid Kuskov]

This fix is for https://bugs.openjdk.java.net/browse/CODETOOLS-7902913
that is the regression of the fix for https://bugs.openjdk.java.net/browse/CODETOOLS-7902892
The fix adds the token SEMICOLON to the list of alllowed which was missed in the metod checkReferenceIndex that checks a token that follows  reference_kind:[reference_index | [class|interface] | method]

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Commit messages:
 - 7902913: jasm incorrectly processes the instruction pair: ldc MethodHandle

Changes: https://git.openjdk.java.net/asmtools/pull/18/files
 Webrev: https://webrevs.openjdk.java.net/?repo=asmtools&pr=18&range=00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7902913
  Stats: 17 lines in 2 files changed: 16 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/asmtools/pull/18.diff
  Fetch: git fetch https://git.openjdk.java.net/asmtools pull/18/head:pull/18

PR: https://git.openjdk.java.net/asmtools/pull/18