[jdk17u-dev] RFR: 8155701: The compiler fails with an AssertionError: typeSig ERROR

[Goetz Lindenmaier]

I backport this for parity with 17.0.5-oracle.

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Commit messages:
 - Backport 1e28fcbc5f32103f460bc35235b3cad0cfaa69b5

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/453/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=453&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8155701
  Stats: 119 lines in 2 files changed: 116 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/453.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/453/head:pull/453

PR: https://git.openjdk.java.net/jdk17u-dev/pull/453