RFR: 8294959: java.base java.lang.Module uses ASM to load module-info.class

[Adam Sotona]

java.base java.lang.Module uses ASM to load module-info.class and this patch converts it to use Classfile API.

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Commit messages:
 - Merge branch 'master' into JDK-8294959-module
 - Merge branch 'JDK-8294982' into JDK-8294959
 - removed obsolete javadoc from implementation classes
 - minor fix in CodeBuilder and added test cases to LDCTest
 - EntryMap::nextPowerOfTwo delegates to Long:numberOfLeadingZeros
 - fixed CodeBuilder:constantInstruction for -0.0d and -0.0f values and added test
 - Merge branch 'master' into JDK-8294982
 - fixed new lines at end of file
 - package jdk.internal.classfile.jdktypes moved to jdk.internal.classfile.java.lang.constant
 - fixed CodeRelabeler javadoc
 - ... and 184 more: https://git.openjdk.org/jdk/compare/cdcf5c1e...61748d8c

Changes: https://git.openjdk.org/jdk/pull/11367/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11367&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8294959
  Stats: 54 lines in 1 file changed: 8 ins; 37 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/11367.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11367/head:pull/11367

PR: https://git.openjdk.org/jdk/pull/11367