RFR: 8252881: [JVMCI] ResolvedJavaType.resolveMethod fails in fastdebug when invoked with a constructor [v2]

[Doug Simon]

> This change prevents a call to `CompilerToVM.resolveMethod` with an argument representing a constructor. Such a call
> triggers an assertion in a fastdebug VM.

Doug Simon has updated the pull request incrementally with one additional commit since the last revision:

  improved readability of comment

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/407/files
  - new: https://git.openjdk.java.net/jdk/pull/407/files/7726f71c..918c0e96

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=407&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=407&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/407.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/407/head:pull/407

PR: https://git.openjdk.java.net/jdk/pull/407