Remove redundant casts. NFC

So I wrote a clang-tidy check to lint out redundant `isa`, `cast`, and
`dyn_cast`s for fun. This is a portion of what it found for clang; I
plan to do similar cleanups in LLVM and other subprojects when I find
time.

Because of the volume of changes, I explicitly avoided making any change
that wasn't highly local and obviously correct to me (e.g. we still have
a number of foo(cast<Bar>(baz)) that I didn't touch, since overloading
is a thing and the cast<Bar> did actually change the type -- just up the
class hierarchy).

I also tried to leave the types we were cast<>ing to somewhere nearby,
in cases where it wasn't locally obvious what we were dealing with
before.

llvm-svn: 326416

1 files changed, 2 insertions, 2 deletions

diff --git a/clang/lib/Sema/SemaExceptionSpec.cpp b/clang/lib/Sema/SemaExceptionSpec.cpp
index ebe93750a79..21ca08f360a 100644
--- a/clang/lib/Sema/SemaExceptionSpec.cpp
+++ b/clang/lib/Sema/SemaExceptionSpec.cpp
@@ -203,8 +203,8 @@ Sema::UpdateExceptionSpec(FunctionDecl *FD,
     if (auto *Listener = getASTMutationListener())
       Listener->ResolvedExceptionSpec(FD);
 
-  for (auto *Redecl : FD->redecls())
-    Context.adjustExceptionSpec(cast<FunctionDecl>(Redecl), ESI);
+  for (FunctionDecl *Redecl : FD->redecls())
+    Context.adjustExceptionSpec(Redecl, ESI);
 }
 
 static bool CheckEquivalentExceptionSpecImpl(