AST: add var GenericSignature.genericParameters

Author: eeckstein

SwiftCompilerSources/Sources/AST/GenericSignature.swift

@@ -25,4 +25,8 @@ public struct GenericSignature: CustomStringConvertible, NoReflectionChildren {
   public var description: String {
     return String(taking: bridged.getDebugDescription())
   }
+
+  public var genericParameters: TypeArray {
+    TypeArray(bridged: bridged.getGenericParams())
+  }
 }

include/swift/AST/ASTBridging.h

@@ -3182,6 +3182,7 @@ struct BridgedGenericSignature {
 
   BRIDGED_INLINE swift::GenericSignature unbridged() const;
   BridgedOwnedString getDebugDescription() const;
+  SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedASTTypeArray getGenericParams() const;
 };
 
 struct BridgedFingerprint {

include/swift/AST/ASTBridgingImpl.h

@@ -783,6 +783,10 @@ swift::GenericSignature BridgedGenericSignature::unbridged() const {
   return swift::GenericSignature(impl);
 }
 
+BridgedASTTypeArray BridgedGenericSignature::getGenericParams() const {
+  return {unbridged().getGenericParams()};
+}
+
 //===----------------------------------------------------------------------===//
 // MARK: BridgedFingerprint
 //===----------------------------------------------------------------------===//