Speculative test fix to exclude Wasm tests on watchOS.

https://bugs.webkit.org/show_bug.cgi?id=273881
rdar://127701918

Reviewed by Keith Miller and Yusuke Suzuki.

1. Change the microbenchmark to exit early if Wasm is not supported.
2. Change test harnesses to detect watchOS properly.
3. Skip Wasm tests when JIT is not supported.

* JSTests/microbenchmarks/wasm-cc-int-to-int.js:
* Tools/Scripts/run-javascriptcore-tests:
(configurationForUpload):
* Tools/Scripts/run-jsc-stress-tests:

Canonical link: https://commits.webkit.org/278528@main

JSTests/microbenchmarks/wasm-cc-int-to-int.js

@@ -1,4 +1,8 @@
 //@runDefault("--useWebAssembly=1")
+
+if (typeof WebAssembly == "undefined")
+    $vm.exit();
+
 var wasm_code;
 try {
     wasm_code = read('../../JSTests/microbenchmarks/wasm-cc-int-to-int.wasm', 'binary')

Tools/Scripts/run-javascriptcore-tests

@@ -426,7 +426,7 @@ sub configurationForUpload()
         if (!$version) {
             $version = iosVersion();
         }
-    } elsif (index($model, 'watch') != -1 || index(xcodeSDKPlatformName(), "watch") != -1) {
+    } elsif (index(lc($model), 'watch') != -1 || index(lc(xcodeSDKPlatformName()), "watch") != -1) {
         $platform = 'watchos';
         die "No watchOS version specified" if !$version;
     } elsif (index(xcodeSDKPlatformName(), "appletv") != -1) {

Tools/Scripts/run-jsc-stress-tests

@@ -601,7 +601,7 @@ $hostOS = determineOS unless $hostOS
 $architecture = determineArchitecture unless $architecture
 $isFTLPlatform = !($architecture == "x86" || $architecture == "arm" || $architecture == "mips" || $architecture == "riscv64" || $hostOS == "windows" || $hostOS == "playstation")
 # Special case armv7 and windows, we want to run the wasm tests temporarily without B3/Air support
-$isWasmPlatform = (not $cloop) && ($isFTLPlatform || $architecture == "arm" || ($hostOS == "windows" && $architecture == "x86_64"))
+$isWasmPlatform = (not $cloop) && $jitTests && ($isFTLPlatform || $architecture == "arm" || ($hostOS == "windows" && $architecture == "x86_64"))
 $isSIMDPlatform = $isWasmPlatform && ($architecture == "arm64" || $architecture == "x86_64")
 
 # This is meant for skipping execution of tests than require a lot of address