[code-reflection] RFR: Make Quotable a marker interface [v3]

[Mourad Abbay]

> In this PR, we make Quotable a marker interface. This PR is based on #301.

Mourad Abbay has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:

 - Merge branch 'code-reflection' into Quotable-no-methods
   
   # Conflicts:
   #	src/java.base/share/classes/java/lang/invoke/InnerClassLambdaMetafactory.java
   #	src/jdk.compiler/share/classes/com/sun/tools/javac/comp/LambdaToMethod.java
 - Simplify interpretation LambdaOp
 - Make Quotable a marker interface
 - Replace opField with opMethod for lambdas.

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Changes: https://git.openjdk.org/babylon/pull/302/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=302&range=02
  Stats: 93 lines in 16 files changed: 46 ins; 10 del; 37 mod
  Patch: https://git.openjdk.org/babylon/pull/302.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/302/head:pull/302

PR: https://git.openjdk.org/babylon/pull/302