Fix a minor leak in handleVM_CreateString

Change-Id: I3273e5d2eb4621202837c43270a466fe056d6894
Fix a minor leaks caused by failed initializations.(typo)

Change-Id: I62bc3ea48938a4f54e9f47218d4025e954a6d566
Fix a leak in Dalvik_dalvik_system_DexFile_openDexFile

Change-Id: I2b394c620af31914606763b35847b7f412774cf4