Remove "@" from FQName.mVersion.

FQName::version() no longer returns the version
with the "@" prefix.

Removed FQName::getPackageFullVersion(). Use
FQName::version() instead.

Test: mma
Test: hidl_test
Bug: 31914582
Change-Id: Iaf05dd17aa338ebb631805badaabcf5abf1b261e
diff --git a/generateCpp.cpp b/generateCpp.cpp
index 68c8bc3..fdc5f90 100644
--- a/generateCpp.cpp
+++ b/generateCpp.cpp
@@ -786,7 +786,7 @@
         out << "IMPLEMENT_REGISTER_AND_GET_SERVICE("
             << baseName << ", "
             << "\"" << iface->fqName().package()
-            << iface->fqName().version() << "-impl.so\""
+            << iface->fqName().atVersion() << "-impl.so\""
             << ")\n";
     }
 
@@ -1719,7 +1719,7 @@
         << ", \""
         << mPackage.package()
         << "\", \""
-        << mPackage.getPackageFullVersion()
+        << mPackage.version()
         << "\", \""
         << iface->localName()
         << "\", \""