WASM: Enable exception handling tests

compiler/testData/codegen/box/casts/castGenericNull.kt

@@ -1,5 +1,4 @@
-// DONT_TARGET_EXACT_BACKEND: WASM
-// WASM_MUTE_REASON: EXCEPTIONS_NOT_IMPLEMENTED
+
 fun <T> castToString(t: T) {
     t as String
 }

compiler/testData/codegen/box/casts/mutableCollections/asWithMutable.kt

@@ -1,8 +1,9 @@
-// DONT_TARGET_EXACT_BACKEND: WASM
-// WASM_MUTE_REASON: EXCEPTIONS_NOT_IMPLEMENTED
 // KJS_WITH_FULL_RUNTIME
 // WITH_RUNTIME
 
+// IGNORE_BACKEND: WASM
+// WASM_MUTE_REASON: STDLIB_COLLECTIONS
+
 class Itr : Iterator<String> by ArrayList<String>().iterator()
 class MItr : MutableIterator<String> by ArrayList<String>().iterator()
 class LItr : ListIterator<String> by ArrayList<String>().listIterator()

compiler/testData/codegen/box/casts/mutableCollections/reifiedAsWithMutable.kt

@@ -1,8 +1,9 @@
-// DONT_TARGET_EXACT_BACKEND: WASM
-// WASM_MUTE_REASON: EXCEPTIONS_NOT_IMPLEMENTED
 // KJS_WITH_FULL_RUNTIME
 // WITH_RUNTIME
 
+// IGNORE_BACKEND: WASM
+// WASM_MUTE_REASON: STDLIB_COLLECTIONS
+
 class Itr : Iterator<String> by ArrayList<String>().iterator()
 class MItr : MutableIterator<String> by ArrayList<String>().iterator()
 class LItr : ListIterator<String> by ArrayList<String>().listIterator()

compiler/testData/codegen/box/casts/mutableCollections/reifiedSafeAsWithMutable.kt

@@ -1,8 +1,9 @@
-// DONT_TARGET_EXACT_BACKEND: WASM
-// WASM_MUTE_REASON: EXCEPTIONS_NOT_IMPLEMENTED
 // KJS_WITH_FULL_RUNTIME
 // WITH_RUNTIME
 
+// IGNORE_BACKEND: WASM
+// WASM_MUTE_REASON: STDLIB_COLLECTIONS
+
 class Itr : Iterator<String> by ArrayList<String>().iterator()
 class MItr : MutableIterator<String> by ArrayList<String>().iterator()
 class LItr : ListIterator<String> by ArrayList<String>().listIterator()

compiler/testData/codegen/box/casts/mutableCollections/safeAsWithMutable.kt

@@ -1,8 +1,9 @@
-// DONT_TARGET_EXACT_BACKEND: WASM
-// WASM_MUTE_REASON: EXCEPTIONS_NOT_IMPLEMENTED
 // KJS_WITH_FULL_RUNTIME
 // WITH_RUNTIME
 
+// IGNORE_BACKEND: WASM
+// WASM_MUTE_REASON: STDLIB_COLLECTIONS
+
 class Itr : Iterator<String> by ArrayList<String>().iterator()
 class MItr : MutableIterator<String> by ArrayList<String>().iterator()
 class LItr : ListIterator<String> by ArrayList<String>().listIterator()