[9] RFR (L): 8057042: LambdaFormEditor: derive new LFs from a base LF

[Vladimir Ivanov]

https://bugs.openjdk.java.net/browse/JDK-8057042

LambdaFormEditor provides an API to transform LambdaForms. Deriving new 
LambdaForms from a base one allows to cache and reuse results of 
repeated transformations.

BMH binding is rewritten to use LambdaFormEditor.

Testing: jdk/java/lang/invoke, jdk/java/util/streams, nashorn, octane w/ 
"-ea -esa" and COMPILE_THRESHOLD={0,30}.

Reviewed-by: vlivanov, ?
Contributed-by: john.r.rose at oracle.com

Thanks!

Best regards,
Vladimir Ivanov