Address PR feedback: rename method

Signed-off-by: Charles Korn <charles.korn@grafana.com>

promql/engine.go

@@ -1387,7 +1387,7 @@ func (ev *evaluator) eval(expr parser.Expr) (parser.Value, storage.Warnings) {
 			unwrapParenExpr(&arg)
 			vs, ok := arg.(*parser.VectorSelector)
 			if ok {
-				return ev.evalTimestampFunctionOverVectorSelector(vs, call, e)
+				return ev.rangeEvalTimestampFunctionOverVectorSelector(vs, call, e)
 			}
 		}
 
@@ -1825,7 +1825,7 @@ func (ev *evaluator) eval(expr parser.Expr) (parser.Value, storage.Warnings) {
 	panic(fmt.Errorf("unhandled expression of type: %T", expr))
 }
 
-func (ev *evaluator) evalTimestampFunctionOverVectorSelector(vs *parser.VectorSelector, call FunctionCall, e *parser.Call) (parser.Value, storage.Warnings) {
+func (ev *evaluator) rangeEvalTimestampFunctionOverVectorSelector(vs *parser.VectorSelector, call FunctionCall, e *parser.Call) (parser.Value, storage.Warnings) {
 	ws, err := checkAndExpandSeriesSet(ev.ctx, vs)
 	if err != nil {
 		ev.error(errWithWarnings{fmt.Errorf("expanding series: %w", err), ws})