WASM: NFC. Rename string import/export functions

libraries/stdlib/wasm/internal/kotlin/wasm/internal/ImportExport.kt

@@ -8,7 +8,7 @@ package kotlin.wasm.internal
 // This is called when exported function returns a string. It writes [i32 length, [i16 chars ...]] into a temporary raw memory area and
 // returns pointer to the start of it.
 // Note: currently there is a single temporary raw memory area so it's not possible to export more than one string at a time.
-internal fun exportStringRet(src: String): Int {
+internal fun exportString(src: String): Int {
     val retAddr = unsafeGetScratchRawMemory(INT_SIZE_BYTES + src.length * CHAR_SIZE_BYTES)
     wasm_i32_store(retAddr, src.length)
     unsafeCharArrayToRawMemory(src.toCharArray(), retAddr + INT_SIZE_BYTES)

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

@@ -14,7 +14,7 @@ public actual fun println() {
 
 /** Prints the given [message] and the line separator to the standard output stream. */
 public actual fun println(message: Any?) {
-    printlnImpl(exportStringRet(message.toString()))
+    printlnImpl(exportString(message.toString()))
 }
 
 /** Prints the given [message] to the standard output stream. */