[NFC] AST: Rename TypeAliasType::getInnermostGenericArgs to getDirectGenericArgs

Author: AnthonyLatsis

include/swift/AST/Types.h

@@ -1803,13 +1803,10 @@ class TypeAliasType final
     return *getTrailingObjects<SubstitutionMap>();
   }
 
-  /// Get the innermost generic arguments, which correspond to the generic
-  /// arguments that are directly applied to the typealias declaration in
-  /// produced by \c getDecl().
-  ///
-  /// The result can be empty, if the declaration itself is non-generic but
-  /// the parent is generic.
-  SmallVector<Type, 2> getInnermostGenericArgs() const;
+  /// Get the direct generic arguments, which correspond to the generic
+  /// arguments that are directly applied to the typealias declaration
+  /// this type references.
+  SmallVector<Type, 2> getDirectGenericArgs() const;
 
   // Support for FoldingSet.
   void Profile(llvm::FoldingSetNodeID &id) const;

lib/AST/ASTDumper.cpp

@@ -3506,7 +3506,7 @@ namespace {
       if (T->getParent())
         printRec("parent", T->getParent());
 
-      for (auto arg : T->getInnermostGenericArgs())
+      for (const auto arg : T->getDirectGenericArgs())
         printRec(arg);
       PrintWithColorRAII(OS, ParenthesisColor) << ')';
     }

lib/AST/ASTPrinter.cpp

@@ -3727,7 +3727,7 @@ class TypePrinter : public TypeVisitor<TypePrinter> {
     }
 
     printQualifiedType(T);
-    printGenericArgs(T->getInnermostGenericArgs());
+    printGenericArgs(T->getDirectGenericArgs());
   }
 
   void visitParenType(ParenType *T) {

lib/AST/Type.cpp

@@ -1385,7 +1385,7 @@ Type SugarType::getSinglyDesugaredTypeSlow() {
   return UnderlyingType;
 }
 
-SmallVector<Type, 2> TypeAliasType::getInnermostGenericArgs() const {
+SmallVector<Type, 2> TypeAliasType::getDirectGenericArgs() const {
   SmallVector<Type, 2> result;
 
   // If the typealias is not generic, there are no generic arguments

lib/AST/TypeWalker.cpp

@@ -39,7 +39,7 @@ class Traversal : public TypeVisitor<Traversal, bool>
     if (auto parent = ty->getParent())
       if (doIt(parent)) return true;
 
-    for (auto arg : ty->getInnermostGenericArgs())
+    for (const auto arg : ty->getDirectGenericArgs())
       if (doIt(arg))
         return true;