[WASM] Implement lazy with UnsafeLazyImpl

compiler/testData/codegen/box/callableReference/property/kt15447.kt

@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: WASM
-// WASM_MUTE_REASON: STDLIB_LAZY
 // WITH_STDLIB
 
 fun box(): String {

compiler/testData/codegen/box/inference/builderInference/kt48445.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: WASM
 // !LANGUAGE: +UnrestrictedBuilderInference
 // IGNORE_BACKEND_FIR: JVM_IR
 // FIR status: NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER on lazy call (Name3, T)

compiler/testData/codegen/box/inference/kt39824.kt

@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: WASM
-// WASM_MUTE_REASON: STDLIB_LAZY
 // WITH_STDLIB
 
 fun <C : Any> diContext(context: C): DIContext<C> = DIContext(TypeToken(), context)

compiler/testData/codegen/box/inlineClasses/constructorCallableReference.kt

@@ -1,7 +1,6 @@
 // WITH_STDLIB
 // KJS_FULL_RUNTIME
 // SKIP_MANGLE_VERIFICATION
-// IGNORE_BACKEND: WASM
 
 interface I {
     companion object {

compiler/testData/codegen/box/ir/anonymousClassLeak.kt

@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: WASM
-// WASM_MUTE_REASON: STDLIB_LAZY
 // WITH_STDLIB
 
 // MODULE: lib

compiler/testData/codegen/box/regressions/objectInsideDelegation.kt

@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: WASM
-// WASM_MUTE_REASON: STDLIB_LAZY
 // WITH_STDLIB
 
 val b: First by lazy {

libraries/stdlib/wasm/src/kotlin/Kotlin.kt

@@ -25,10 +25,6 @@ public actual fun interface Comparator<T> {
     public actual fun compare(a: T, b: T): Int
 }
 
-// From kotlin.kt
-
-
-
 // From numbers.kt
 
 actual fun Double.isNaN(): Boolean = this != this
@@ -87,22 +83,22 @@ public actual fun Float.Companion.fromBits(bits: Int): Float = wasm_f32_reinterp
 //@Deprecated("Use Volatile annotation from kotlin.jvm package", ReplaceWith("kotlin.jvm.Volatile"), level = DeprecationLevel.WARNING)
 //public typealias Volatile = kotlin.jvm.Volatile
 
-
-
-
 // from lazy.kt
 
-public actual fun <T> lazy(initializer: () -> T): Lazy<T> = TODO("Wasm stdlib: Kotlin")
+/**
+ * Creates a new instance of the [Lazy] that uses the specified initialization function [initializer].
+ */
+public actual fun <T> lazy(initializer: () -> T): Lazy<T> = UnsafeLazyImpl(initializer)
 
 /**
  * Creates a new instance of the [Lazy] that uses the specified initialization function [initializer].
  *
  * The [mode] parameter is ignored. */
-public actual fun <T> lazy(mode: LazyThreadSafetyMode, initializer: () -> T): Lazy<T> = TODO("Wasm stdlib: Kotlin")
+public actual fun <T> lazy(mode: LazyThreadSafetyMode, initializer: () -> T): Lazy<T> = UnsafeLazyImpl(initializer)
 
 /**
  * Creates a new instance of the [Lazy] that uses the specified initialization function [initializer].
  *
  * The [lock] parameter is ignored.
  */
-public actual fun <T> lazy(lock: Any?, initializer: () -> T): Lazy<T> = TODO("Wasm stdlib: Kotlin")
+public actual fun <T> lazy(lock: Any?, initializer: () -> T): Lazy<T> = UnsafeLazyImpl(initializer)