8129962: Investigate performance improvements in langtools combo tests
Summary: New combo API that runs all combo instances in a shared javac context (whenever possible).
Reviewed-by: jjg, jlahoda, vromero

8074432: Move jdeps and javap to jdk.jdeps module
Reviewed-by: jjg, alanb, erikj

8076543: Add @modules as needed to the langtools tests
Reviewed-by: jjg, shurailine

8024127: javac, Code_attribute.exception_table_langth should be Code_attribute.exception_table_length
Summary: exception_table_langth renamed to exception_table_length
Reviewed-by: jfranck, jjg

8006694: temporarily workaround combo tests are causing time out in several platforms
Reviewed-by: jjg
Contributed-by: maurizio.cimadamore@oracle.com

8005167: execution time of combo tests in javac should be improved
Reviewed-by: jjg, jjh

7093325: Redundant entry in bytecode exception table
Summary: Inlining of finalizers does not update gaps list accordingly
Reviewed-by: jjg