RFR: 7902688: Asmtools support for JEP 360: changing the name from SealedTypes to SealedClasses

[Leonid Kuskov]

This is the trivial fix for https://bugs.openjdk.java.net/browse/CODETOOLS-7902688
All "PermittedSubtypes" names, identifiers and types have been changed to "PermittedSubclasses"

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Commit messages:
 - 7902688: Asmtools support for JEP 360: changing the name from SealedTypes to SealedClasses
 - 7902686: Jasm incorrectly sets up the SourceFile attribute on Windows platform
 - 7902681: Asmtools build fails if Default Java File Encoding is set to ASCII
 - Merge branch 'CODETOOLS-7902659'
 - Merge branch 'CODETOOLS-7902660'
 - 7902659: Correct unconditional call of System.exit in printVersion (Main.java)
 - 7902660: jdis includes unnecessary Field references in MethodHandle parameters while printing static params of a bsm and skips the method tag in ldc# instructions

Changes: https://git.openjdk.java.net/asmtools/pull/6/files
 Webrev: https://webrevs.openjdk.java.net/asmtools/6/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7902688
  Stats: 236 lines in 16 files changed: 95 ins; 92 del; 49 mod
  Patch: https://git.openjdk.java.net/asmtools/pull/6.diff
  Fetch: git fetch https://git.openjdk.java.net/asmtools pull/6/head:pull/6

PR: https://git.openjdk.java.net/asmtools/pull/6