Automatic clang-tidy fixes.

tests/test_class_sh_shared_from_this.cpp

@@ -171,7 +171,7 @@ struct SharedFromThisRef {
     struct B : std::enable_shared_from_this<B> {
         B() { print_created(this); }
         B(const B &) : std::enable_shared_from_this<B>() { print_copy_created(this); }
-        B(B &&) : std::enable_shared_from_this<B>() { print_move_created(this); }
+        B(B &&)  noexcept : std::enable_shared_from_this<B>() { print_move_created(this); }
         ~B() { print_destroyed(this); }
     };
 

tests/test_class_sh_trampoline_shared_from_this.cpp

@@ -23,14 +23,14 @@ struct Sft : std::enable_shared_from_this<Sft> {
     // worth the trouble covering all platforms.
     Sft(const Sft &other) { history = other.history + "_CpCtor"; }
 
-    Sft(Sft &&other) { history = other.history + "_MvCtor"; }
+    Sft(Sft &&other) noexcept { history = other.history + "_MvCtor"; }
 
     Sft &operator=(const Sft &other) {
         history = other.history + "_OpEqLv";
         return *this;
     }
 
-    Sft &operator=(Sft &&other) {
+    Sft &operator=(Sft &&other) noexcept {
         history = other.history + "_OpEqRv";
         return *this;
     }