Note confusion-causing breaks in HIDL convention.

These were either made at a time when the convention was not fully
formed or missed during review.

It is somewhat misleading since method overloading isn't supported
and method names need this kind of prefix, but nothing else does.

The reason for this is that everything is namespaced, but methods are
all in the same namespace. The reason method overloading is not supported
in HIDL is because the HIDL types may map to types that collide in the
target languages, and this would cause any sort of overloading rules
to require complicated machinery.

Bug: N/A
Test: hidl-gen -Lcheck android.hardware.usb@1.1 android.hardware.vibrator@1.1 && echo ":)"
:)

Change-Id: Iac23c9311925ed140ff1e15d1366829b078c8866
diff --git a/current.txt b/current.txt
index b8457f8..909732f 100644
--- a/current.txt
+++ b/current.txt
@@ -392,3 +392,5 @@
 1d4a5776614c08b5d794a5ec5ab04697260cbd4b3441d5935cd53ee71d19da02 android.hardware.radio@1.0::IRadioResponse
 271187e261b30c01a33011aea257c07a2d2f05b72943ebee89e973e997849973 android.hardware.radio@1.0::types
 1d19720d4fd38b1095f0f555a4bd92b3b12c9b1d0f560b0e9a474cd6dcc20db6 android.hardware.radio@1.2::IRadio
+1722ad002317b1fae1400de709e90f442d94ef22864e05f7a12af48c32e8edc8 android.hardware.usb@1.1::types
+29c8da7a13c40d488f569c812441d5754ee45bdcdb8ce6564f524b708d10a057 android.hardware.vibrator@1.1::types
diff --git a/usb/1.1/types.hal b/usb/1.1/types.hal
index 2261e09..c9cc292 100644
--- a/usb/1.1/types.hal
+++ b/usb/1.1/types.hal
@@ -18,6 +18,8 @@
 
 import android.hardware.usb@1.0;
 
+// NOTE: suffix '_1_1' is for legacy ABI compatibility. It cannot be
+// changed to 'PortMode' which the convention dictates.
 @export
 enum PortMode_1_1 : PortMode {
     /*
@@ -37,6 +39,8 @@
  * Used as the container to report data back to the caller.
  * Represents the current connection status of a single USB port.
  */
+// NOTE: suffix '_1_1' is for legacy ABI compatibility. It cannot be
+// changed to 'PortStatus' which the convention dictates.
 struct PortStatus_1_1 {
     /*
      * The supportedModes and the currentMode fields of the status
diff --git a/vibrator/1.1/types.hal b/vibrator/1.1/types.hal
index f7a619a..72deb4a 100644
--- a/vibrator/1.1/types.hal
+++ b/vibrator/1.1/types.hal
@@ -18,6 +18,8 @@
 
 import @1.0::Effect;
 
+// NOTE: suffix '_1_1' is for legacy ABI compatibility. It cannot be
+// changed to 'Effect' which the convention dictates.
 @export
 enum Effect_1_1 : @1.0::Effect {
     /**