Clean up hard-coded Bp/Bn/Bs/IHw prefixes.

Also,
* use iface->localName() instead of "I" + iface->getBaseName()
* do not hardcode IBase related strings
* remove baseName in some places

Bug: 32559427
Test: hidl_test
Change-Id: Ib2049f570ca27d33a945dd6ccb5442e336a11262
diff --git a/Interface.h b/Interface.h
index 296a4ae..6cde462 100644
--- a/Interface.h
+++ b/Interface.h
@@ -64,8 +64,12 @@
     // this->hidlReservedMethods()
     std::vector<InterfaceAndMethod> allMethodsFromRoot() const;
 
+    // aliases for corresponding methods in this->fqName()
     std::string getBaseName() const;
-
+    std::string getProxyName() const;
+    std::string getStubName() const;
+    std::string getPassthroughName() const;
+    std::string getHwName() const;
     FQName getProxyFqName() const;
     FQName getStubFqName() const;
     FQName getPassthroughFqName() const;