Apply suggestions from code review

Co-authored-by: Robert Pająk <[email protected]>

sdk/metric/internal/x/x.go

@@ -68,11 +68,11 @@ func (f Feature[T]) Enabled() bool {
 	return ok
 }
 
-// EnabledInstrument provides the interface for synchronous
-// instruments to returned whether or not they are enabled.
+// EnabledInstrument informs whether the instrument is enabled.
+//
+// EnabledInstrument interface is implemented by synchronous instruments.
 type EnabledInstrument interface {
-	// Enabled returns whether the instrument has any measurements
-	// associated with it.
+	// Enabled returns whether the instrument will process measurements for the given context.
 	//
 	// This function can be used in places where measuring an instrument
 	// would result in computationally expensive operations.

sdk/metric/meter_test.go

@@ -556,7 +556,7 @@ func TestMeterWithDropView(t *testing.T) {
 				ctr, err := m.Int64Counter("sint")
 				assert.NoError(t, err)
 				c, ok := ctr.(x.EnabledInstrument)
-				assert.True(t, ok)
+				require.True(t, ok)
 				assert.False(t, c.Enabled())
 			},
 		},