Copying structs from storage to storage.

test/libsolidity/semanticTests/structs/struct_assign_reference_to_struct.sol

@@ -32,5 +32,7 @@ contract test {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // assign() -> 2, 2, 3, 3

test/libsolidity/semanticTests/structs/struct_containing_bytes_copy_and_delete.sol

@@ -20,6 +20,8 @@ contract c {
         return data1.data[i];
     }
 }
+// ====
+// compileViaYul: also
 // ----
 // storage: empty
 // set(uint256,bytes,uint256): 12, 0x60, 13, 33, "12345678901234567890123456789012", "3" -> true

test/libsolidity/semanticTests/structs/struct_copy.sol

@@ -34,6 +34,8 @@ contract c {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // set(uint256): 7 -> true
 // retrieve(uint256): 7 -> 1, 3, 4, 2

test/libsolidity/semanticTests/various/swap_in_storage_overwrite.sol

@@ -23,6 +23,8 @@ contract c {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // x() -> 0, 0
 // y() -> 0, 0