[Wasm] Add kotlin wasm wasi mode compiler flag

compiler/cli/cli-common/gen/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArgumentsCopyGenerated.kt

@@ -72,6 +72,7 @@ fun copyK2JSCompilerArguments(from: K2JSCompilerArguments, to: K2JSCompilerArgum
     to.wasmEnableAsserts = from.wasmEnableAsserts
     to.wasmGenerateWat = from.wasmGenerateWat
     to.wasmKClassFqn = from.wasmKClassFqn
+    to.wasmTarget = from.wasmTarget
 
     return to
 }

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArguments.kt

@@ -623,6 +623,13 @@ class K2JSCompilerArguments : CommonCompilerArguments() {
             field = value
         }
 
+    @Argument(value = "-Xwasm-target", description = "Set up Wasm target (wasm-js or wasm-wasi)")
+    var wasmTarget: String? = null
+        set(value) {
+            checkFrozen()
+            field = if (value.isNullOrEmpty()) null else value
+        }
+
     @Argument(
         value = "-Xforce-deprecated-legacy-compiler-usage",
         description = "The flag is used only for our inner infrastructure. It will be removed soon, so it's unsafe to use it nowadays."