Expose UnsignedLong and Long on Emscripten.

The "64-bit integers have to be emulated and it's slow" problem doesn't
apply for WebAssembly anymore.

doc/changelog.dox

@@ -346,6 +346,9 @@ See also:
 -   The [base-qt](https://github.com/mosra/magnum-bootstrap/tree/base-qt)
     bootstrap project is fixed to use OpenGL 4.1 on macOS instead of being
     stuck on 2.1 (see [mosra/magnum-bootstrap#22](https://github.com/mosra/magnum-bootstrap/issues/22))
+-   Since asm.js days are long over and WebAssembly supports 64-bit integers
+    natively, the @ref UnsignedLong and @ref Long types are now exposed on
+    @ref CORRADE_TARGET_EMSCRIPTEN "Emscripten" as well
 
 @subsubsection changelog-latest-changes-animation Animation library
 

src/Magnum/Magnum.h

@@ -201,23 +201,11 @@ Equivalent to GLSL @glsl int @ce.
 */
 typedef std::int32_t Int;
 
-#ifndef CORRADE_TARGET_EMSCRIPTEN
-/**
-@brief Unsigned long (64bit)
-
-@partialsupport 64-bit integers are not available under
-    @ref CORRADE_TARGET_EMSCRIPTEN "Emscripten".
-*/
+/** @brief Unsigned long (64bit) */
 typedef std::uint64_t UnsignedLong;
 
-/**
-@brief Signed long (64bit)
-
-@partialsupport 64-bit integers are not available in
-    @ref CORRADE_TARGET_EMSCRIPTEN "Emscripten".
-*/
+/** @brief Signed long (64bit) */
 typedef std::int64_t Long;
-#endif
 
 /**
 @brief Float (32bit)

src/Magnum/Types.h

@@ -43,10 +43,8 @@ typedef std::uint16_t UnsignedShort;
 typedef std::int16_t Short;
 typedef std::uint32_t UnsignedInt;
 typedef std::int32_t Int;
-#ifndef CORRADE_TARGET_EMSCRIPTEN
 typedef std::uint64_t UnsignedLong;
 typedef std::int64_t Long;
-#endif
 
 typedef float Float;
 typedef double Double;