[K/N] Internalize FloatingPointParser

As a part of efforts to stabilize K/N stdlib.

kotlin-native/runtime/src/main/kotlin/kotlin/native/internal/FloatingPointParser.kt

@@ -53,7 +53,7 @@ private external fun parseFloatImpl(s: String, e: Int): Float
  * Used to parse a string and return either a single or double precision
  * floating point number.
  */
-object FloatingPointParser {
+internal object FloatingPointParser {
     /*
      * All number with exponent larger than MAX_EXP can be treated as infinity.
      * All number with exponent smaller than MIN_EXP can be treated as zero.

kotlin-native/runtime/src/main/kotlin/kotlin/text/StringNumberConversions.kt

@@ -137,16 +137,14 @@ public actual inline fun String.toLong(radix: Int): Long = toLongOrNull(radix) ?
  * Parses the string as a [Float] number and returns the result.
  * @throws NumberFormatException if the string is not a valid representation of a number.
  */
-@kotlin.internal.InlineOnly
-public actual inline fun String.toFloat(): Float = FloatingPointParser.parseFloat(this)
+public actual fun String.toFloat(): Float = FloatingPointParser.parseFloat(this)
 
 
 /**
  * Parses the string as a [Double] number and returns the result.
  * @throws NumberFormatException if the string is not a valid representation of a number.
  */
-@kotlin.internal.InlineOnly
-public actual inline fun String.toDouble(): Double = FloatingPointParser.parseDouble(this)
+public actual fun String.toDouble(): Double = FloatingPointParser.parseDouble(this)
 
 /**
  * Parses the string as a [Float] number and returns the result