stdlib: annotate some floating point functions with "optimize.sil.inline.constant.arguments"

Author: eeckstein

stdlib/public/core/FloatingPointTypes.swift.gyb

@@ -541,6 +541,7 @@ extension ${Self}: BinaryFloatingPoint {
   }
 
   @inlinable
+  @_semantics("optimize.sil.inline.constant.arguments")
   public var exponent: Int {
     if !isFinite { return .max }
     if isZero { return .min }
@@ -884,6 +885,7 @@ extension ${Self}: BinaryFloatingPoint {
   }
 
   @inlinable
+  @_semantics("optimize.sil.inline.constant.arguments")
   public var significandWidth: Int {
     let trailingZeroBits = significandBitPattern.trailingZeroBitCount
     if isNormal {

stdlib/public/core/Integers.swift

@@ -2696,6 +2696,7 @@ extension FixedWidthInteger {
 extension FixedWidthInteger {
   @inlinable
   @_semantics("optimize.sil.specialize.generic.partial.never")
+  @_semantics("optimize.sil.inline.constant.arguments")
   public // @testable
   static func _convert<Source: BinaryFloatingPoint>(
     from source: Source