Clean up reporting of bad oneway return/out params

Change the messages on detecting a bad parameter direction from:

  a/IFoo.aidl:1oneway method cannot have out parameters: f

to the more readable:

  a/IBar.aidl:1 oneway method 'f' cannot have out parameters

Bug: None
Test: unit test output is prettier

Change-Id: I1b8da80edf4d04c0fae110c941300afa2080deb7
1 file changed