Adjust tests.

test/libsolidity/semanticTests/array/pop/array_pop.sol

@@ -12,6 +12,7 @@ contract c {
     }
 }
 // ====
+// requiresYulOptimizer: minimalStack
 // compileViaYul: also
 // ----
 // test() -> 1, 0

test/libsolidity/semanticTests/array/pop/array_pop_array_transition.sol

@@ -22,6 +22,7 @@ contract c {
     }
 }
 // ====
+// requiresYulOptimizer: full
 // compileViaYul: also
 // ----
 // test() -> 1, 2, 3

test/libsolidity/semanticTests/array/pop/array_pop_uint16_transition.sol

@@ -17,6 +17,7 @@ contract c {
     }
 }
 // ====
+// requiresYulOptimizer: minimalStack
 // compileViaYul: also
 // ----
 // test() -> 38, 28, 18

test/libsolidity/semanticTests/array/pop/array_pop_uint24_transition.sol

@@ -17,6 +17,7 @@ contract c {
     }
 }
 // ====
+// requiresYulOptimizer: minimalStack
 // compileViaYul: also
 // ----
 // test() -> 20, 10

test/libsolidity/semanticTests/array/pop/byte_array_pop.sol

@@ -13,6 +13,7 @@ contract c {
     }
 }
 // ====
+// requiresYulOptimizer: minimalStack
 // compileToEwasm: also
 // compileViaYul: also
 // ----

test/libsolidity/semanticTests/array/pop/byte_array_pop_long_storage_empty.sol

@@ -15,6 +15,7 @@ contract c {
     }
 }
 // ====
+// requiresYulOptimizer: minimalStack
 // compileViaYul: also
 // ----
 // test() -> true