Fix typo: tyep -> type.

Author: Brian Yahn

clang/include/clang/AST/ASTContext.h

@@ -1369,7 +1369,7 @@ class ASTContext : public RefCountedBase<ASTContext> {
                            bool AsWritten = false);
 
   /// Get a function type and produce the equivalent function type where
-  /// pointer size address spaces in the return type and parameter tyeps are
+  /// pointer size address spaces in the return type and parameter types are
   /// replaced with the default address space.
   QualType getFunctionTypeWithoutPtrSizes(QualType T);