Turn on semantic tests for the old codegen where possible

These were marked IR-only, but they do pass on the old codegen too.

Also add old codegen version of semantictests/revertStrings/function_entry_checks.

test/libsolidity/semanticTests/viaYul/array_memory_create.sol

@@ -6,7 +6,7 @@ contract C {
 	}
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // create(uint256): 0 -> 0
 // create(uint256): 7 -> 7