[Wasm] Copy property reference lowering from K/N

compiler/testData/codegen/box/dataClasses/dataClassWithManyFields.kt

@@ -1,6 +1,3 @@
-// DONT_TARGET_EXACT_BACKEND: WASM
-// Needs string concatenation lowering working via the stdlib StringBuilder. Otherwise fails with intermitten StackOverflow exception.
-// WASM_MUTE_REASON: STDLIB_STRING_BUILDER
 
 data class DC(
     val d0: String = "", val d1: String = "", val d2: String = "", val d3: String = "", val d4: String = "", val d5: String = "",