The arch variants are hardcoded in every module type. Refactor
them out into a Target.Variations() method in preparation for
splitting the arch mutator into two, which will require using
different variations.
Test: m checkbuild
Change-Id: I28ef7cd5168095ac888fe77f04e27f9ad81978c0
Corrects an error message that refers to no_framework_libs.
Removes any tests that use no_framework_libs:true where possible as
there are duplicate tests for sdk_version:"core_platform". Otherwise,
switches them over to use sdk_version:"core_platform".
Bug: 134566750
Test: m droid
Change-Id: I41abe1a49f5c744e3393ca9cdf0c41888f810c9f
java_device_for_host and java_host_for_device allow treating a
device module as a host module and vice versa. They will be useful
for converting layoutlib and robolectric to Soong, as these modules
run device java code on the host.
Bug: 117920228
Test: device_host_converter_test.go
Change-Id: Ia9a371fb41a97bc16338097f3ce8b40099744167