[Test] Improved case name.

Author: nate-chandler

test/SILOptimizer/address_lowering.sil

@@ -2054,14 +2054,14 @@ entry(%instance : @owned $T):
   return %retval : $()
 }
 
-// CHECK-LABEL: sil [ossa] @yield_two : {{.*}} {
+// CHECK-LABEL: sil [ossa] @test_yield_1_two_values : {{.*}} {
 // CHECK:         tuple_element_addr
 // CHECK:         tuple_element_addr
 // CHECK:         [[KEY:%[^,]+]] = tuple_element_addr {{%[^,]+}} : $*(key: Key, value: Value), 0
 // CHECK:         [[VALUE:%[^,]+]] = tuple_element_addr {{%[^,]+}} : $*(key: Key, value: Value), 1
 // CHECK:         yield ([[KEY]] : $*Key, [[VALUE]] : $*Value)
-// CHECK-LABEL: } // end sil function 'yield_two'
-sil [ossa] @yield_two : $@yield_once @convention(method) <Key, Value> (@in_guaranteed Key, @in_guaranteed Value) -> (@yields @in_guaranteed Key, @yields @in_guaranteed Value) {
+// CHECK-LABEL: } // end sil function 'test_yield_1_two_values'
+sil [ossa] @test_yield_1_two_values : $@yield_once @convention(method) <Key, Value> (@in_guaranteed Key, @in_guaranteed Value) -> (@yields @in_guaranteed Key, @yields @in_guaranteed Value) {
 bb0(%0 : @guaranteed $Key, %1 : @guaranteed $Value):
   %7 = copy_value %0 : $Key
   %8 = copy_value %1 : $Value