Add noexcept to move constructors and assignment operators.

Bug: 116614593
Test: build with WITH_TIDY=1
Change-Id: I5a7461386946ca623ab509609092aa0ac8418b80
diff --git a/libmemunreachable/ScopedPipe.h b/libmemunreachable/ScopedPipe.h
index adabfd8..b9dead5 100644
--- a/libmemunreachable/ScopedPipe.h
+++ b/libmemunreachable/ScopedPipe.h
@@ -33,12 +33,12 @@
   }
   ~ScopedPipe() { Close(); }
 
-  ScopedPipe(ScopedPipe&& other) {
+  ScopedPipe(ScopedPipe&& other) noexcept {
     SetReceiver(other.ReleaseReceiver());
     SetSender(other.ReleaseSender());
   }
 
-  ScopedPipe& operator=(ScopedPipe&& other) {
+  ScopedPipe& operator=(ScopedPipe&& other) noexcept {
     SetReceiver(other.ReleaseReceiver());
     SetSender(other.ReleaseSender());
     return *this;