Merge pull request #13640 from davezarzycki/nfc_repack_two_pattern_bits

Author: swift-ci

include/swift/AST/Pattern.h

@@ -67,6 +67,15 @@ class alignas(8) Pattern {
     IsPropagatedType : 1
   );
 
+  SWIFT_INLINE_BITFIELD(BoolPattern, Pattern, 1,
+    Value : 1
+  );
+
+  SWIFT_INLINE_BITFIELD(VarPattern, Pattern, 1,
+    /// True if this is a let pattern, false if a var pattern.
+    IsLet : 1
+  );
+
   } Bits;
 
   Pattern(PatternKind kind) {
@@ -581,15 +590,15 @@ class EnumElementPattern : public Pattern {
 /// matched against the associated value for the case.
 class BoolPattern : public Pattern {
   SourceLoc NameLoc;
-  bool Value;
 
 public:
   BoolPattern(SourceLoc NameLoc, bool Value)
-    : Pattern(PatternKind::Bool), NameLoc(NameLoc), Value(Value) {
+      : Pattern(PatternKind::Bool), NameLoc(NameLoc) {
+    Bits.BoolPattern.Value = Value;
   }
 
-  bool getValue() const { return Value; }
-  void setValue(bool v) { Value = v; }
+  bool getValue() const { return Bits.BoolPattern.Value; }
+  void setValue(bool v) { Bits.BoolPattern.Value = v; }
 
   SourceLoc getNameLoc() const { return NameLoc; }
   SourceLoc getLoc() const { return NameLoc; }
@@ -703,17 +712,17 @@ class ExprPattern : public Pattern {
 /// parsed as expressions referencing existing entities.
 class VarPattern : public Pattern {
   SourceLoc VarLoc;
-  bool IsLet;  // True if this is a let pattern, false if a var pattern.
   Pattern *SubPattern;
 public:
   VarPattern(SourceLoc loc, bool isLet, Pattern *sub,
              Optional<bool> implicit = None)
-    : Pattern(PatternKind::Var), VarLoc(loc), IsLet(isLet), SubPattern(sub) {
+      : Pattern(PatternKind::Var), VarLoc(loc), SubPattern(sub) {
+    Bits.VarPattern.IsLet = isLet;
     if (implicit.hasValue() ? *implicit : !loc.isValid())
       setImplicit();
   }
 
-  bool isLet() const { return IsLet; }
+  bool isLet() const { return Bits.VarPattern.IsLet; }
 
   SourceLoc getLoc() const { return VarLoc; }
   SourceRange getSourceRange() const {