Add standard throw() spec to delete operators.

Without these specs, clang will reports mismatch between standard definitions and these declarations/definitions. These specs are ignored when compiled with -fno-exceptions.

BUG: 17136236
Change-Id: I386c712a61dc4fc74dfde45f9ec2d3d037f2e9f1
diff --git a/libc/bionic/new.cpp b/libc/bionic/new.cpp
index fcfd1bd..cd84c2e 100644
--- a/libc/bionic/new.cpp
+++ b/libc/bionic/new.cpp
@@ -38,11 +38,11 @@
     return p;
 }
 
-void  operator delete(void* ptr) {
+void  operator delete(void* ptr) throw() {
     free(ptr);
 }
 
-void  operator delete[](void* ptr) {
+void  operator delete[](void* ptr) throw() {
     free(ptr);
 }
 
@@ -54,10 +54,10 @@
     return malloc(size);
 }
 
-void  operator delete(void* ptr, const std::nothrow_t&) {
+void  operator delete(void* ptr, const std::nothrow_t&) throw() {
     free(ptr);
 }
 
-void  operator delete[](void* ptr, const std::nothrow_t&) {
+void  operator delete[](void* ptr, const std::nothrow_t&) throw() {
     free(ptr);
 }
diff --git a/libstdc++/include/new b/libstdc++/include/new
index 0253e8b..c5a43de 100644
--- a/libstdc++/include/new
+++ b/libstdc++/include/new
@@ -13,19 +13,19 @@
 
 void* operator new(std::size_t);
 void* operator new[](std::size_t);
-void  operator delete(void*);
-void  operator delete[](void*);
+void  operator delete(void*) throw();
+void  operator delete[](void*) throw();
 void* operator new(std::size_t, const std::nothrow_t&);
 void* operator new[](std::size_t, const std::nothrow_t&);
-void  operator delete(void*, const std::nothrow_t&);
-void  operator delete[](void*, const std::nothrow_t&);
+void  operator delete(void*, const std::nothrow_t&) throw();
+void  operator delete[](void*, const std::nothrow_t&) throw();
 
 inline void* operator new(std::size_t, void* p) { return p; }
 inline void* operator new[](std::size_t, void* p) { return p; }
 
 // these next two are not really required, since exceptions are off
-inline void  operator delete(void*, void*) { }
-inline void  operator delete[](void*, void*) { }
+inline void  operator delete(void*, void*) throw() { }
+inline void  operator delete[](void*, void*) throw() { }
 
 }  // extern C++