Avoid having to pass ModuleFactoryAdaptor to every call to
RegisterModuleType in a test by wrapping RegisterModuleType.
Test: all soong tests
Change-Id: If8847d16487de0479cc3020b728256922b3cadba
Add a test for the arch mutator in preparation for splitting it
into two mutators.
Test: m checkbuild
Change-Id: Ifd0a146a085901d33db50e783bdfad31edd7b7a6
Runtime-created struct types have limit on the name of the type,
which is the full text of the fields in the struct. Avoid creating
runtime struct types when filtering produces an identical struct.
Also add tests and godoc for filterArchStruct.
Test: arch_test.go
Change-Id: If7eb27ea9e72073d5252e93f2110b08889ed76b1
Colin Cross