This allows a bootclasspath_fragment (specifically the
art-bootclasspath-fragment) to specify additional contents to be
appended when coverage is enabled.
The art-bootclasspath-fragment will use this to add jacocoagent to its
contents to ensure that it is always consistent with the configuration.
Bug: 177892522
Test: m nothing
Change-Id: I50d05fe5e0e9b8c14bdf3dfd63bba0ac97e31d48
Also renames files, tests, module types in a similar fashion.
There are still some references to image and boot image. They are kept
for the following reasons:
* image_name - this is the name of an ART boot image, i.e. the
collection of .art/.oat/.vdex files.
* BootImageInfo - again this is related to the ART boot image.
* .../art_boot_images/... paths - ditto.
Bug: 177892522
Test: m nothing
Change-Id: Ie1f4738061d131fee75de48bc26a7601481bad4d
