CMake: pass --experimental-wasm-simd to Node.js < 17 in corrade_add_test().

Snce version 15 Node.js ships with V8 8.6, which contains also the
remaining bitmask instructions, so from that version onwards there
should be no harm from having SIMD enabled. Older versions have SIMD
incomplete, meaning general code won't really run anyway, independently
of the flag being set or not.

Author: mosra

modules/UseCorrade.cmake

@@ -450,7 +450,22 @@ function(corrade_add_test test_name)
             set_property(TARGET ${test_name} APPEND_STRING PROPERTY COMPILE_FLAGS " -s DISABLE_EXCEPTION_CATCHING=0")
             set_property(TARGET ${test_name} APPEND_STRING PROPERTY LINK_FLAGS " -s DISABLE_EXCEPTION_CATCHING=0")
             find_package(NodeJs REQUIRED)
-            add_test(NAME ${test_name} COMMAND NodeJs::NodeJs $<TARGET_FILE:${test_name}> ${arguments})
+            # Node.js before version 17 needs --experimental-wasm-simd. Version
+            # 17 upgraded to V8 9.1, which has the option enabled by default:
+            #   https://github.com/nodejs/node/commit/a7cbf19a82c75e9a65e90fb8ba4947e2fc52ef39
+            # Since the code defining these flags explicitly says "remove once
+            # they hit stable":
+            #   https://github.com/v8/v8/blob/ba8ad5dd17ea85c856c09c2ff603641487d1f0ca/src/wasm/wasm-feature-flags.h#L101-L109
+            # even though it causes numberous issues such as:
+            #   https://github.com/nodejs/node/issues/43592
+            # I'm future-proofing and not setting it for version 17+. From the
+            # other side, the flag goes back to ancient version 6 (2017), so it
+            # should be no problem to just pass it there always:
+            #   https://github.com/v8/v8/commit/45618a9ab5cc98a5de200b0116670e8c272f0c5f
+            if(NodeJS_VERSION VERSION_LESS 17)
+                set(experimental_wasm_simd --experimental-wasm-simd)
+            endif()
+            add_test(NAME ${test_name} COMMAND NodeJs::NodeJs ${experimental_wasm_simd} $<TARGET_FILE:${test_name}> ${arguments})
 
             # Embed all files
             foreach(file ${files})