[NFC][clang] Fix static analyzer concerns

[Fznamznon]

Summary

TypeLocBuilder frees resources in the destructor but doesn't have
user-written copy c'tor or assignment operator, so copying it using
default ones can cause double free.

[aaron.ballman]

LGTM!

[Fznamznon]

Rebase to maybe pass precommit

clang/lib/Sema/TypeLocBuilder.h

TypeLocBuilder()
       : Buffer(InlineBuffer), Capacity(InlineCapacity), Index(InlineCapacity),
         NumBytesAtAlign4(0), AtAlign8(false) {}
 
   ~TypeLocBuilder() {
     if (Buffer != InlineBuffer)
       delete[] Buffer;
   }
 
+  TypeLocBuilder(const TypeLocBuilder &) = delete;
+  TypeLocBuilder &operator=(const TypeLocBuilder &) = delete;
+
   /// Ensures that this buffer has at least as much capacity as described.
   void reserve(size_t Requested) {
     if (Requested > Capacity)
       // For now, match the request exactly.
       grow(Requested);
   }
 
   /// Pushes a copy of the given TypeLoc onto this builder.  The builder