[Sol->Yul] Implementing conversion of struct to struct pointer.

Co-authored-by: Daniel Kirchner <daniel@ekpyron.org>

test/libsolidity/semanticTests/array/delete_on_array_of_structs.sol

@@ -16,5 +16,7 @@ contract C {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // f() -> true # This code interprets x as an array length and thus will go out of gas. neither of the two should throw due to out-of-bounds access #

test/libsolidity/semanticTests/array/push_no_args_struct.sol

@@ -31,6 +31,8 @@ contract C {
 	}
 
 }
+// ====
+// compileViaYul: also
 // ----
 // l() -> 0
 // f(uint256): 42 ->

test/libsolidity/semanticTests/inlineAssembly/inline_assembly_storage_access_via_pointer.sol

@@ -18,6 +18,8 @@ contract C {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // f() -> true
 // a() -> 7

test/libsolidity/semanticTests/libraries/using_for_storage_structs.sol

@@ -21,5 +21,7 @@ contract C {
     return (s.f(), h(s));
   }
 }
+// ====
+// compileViaYul: also
 // ----
 // g() -> 7, 7

test/libsolidity/semanticTests/structs/recursive_struct_2.sol

@@ -20,5 +20,7 @@ contract C {
        assembly { a := sload(s.slot) b := sload(slot1) c := sload(slot2) d := sload(slot3) }
     }
 }
+// ====
+// compileViaYul: also
 // ----
 // f() -> 0, 0, 0, 0

test/libsolidity/semanticTests/structs/struct_delete_member.sol

@@ -16,5 +16,7 @@ contract test {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // deleteMember() -> 0

test/libsolidity/semanticTests/structs/struct_reference.sol

@@ -18,6 +18,8 @@ contract test {
         inner.recursive[0].z = inner.recursive[1].z + 1;
     }
 }
+// ====
+// compileViaYul: also
 // ----
 // check() -> false
 // set() ->

test/libsolidity/semanticTests/various/typed_multi_variable_declaration.sol

@@ -22,5 +22,7 @@ contract C {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // f() -> true