build: Build Swift SDK earlier than SwiftPM to allow SwiftPM to use it

Just built Swift SDK would be useful for SwiftPM to perform integration
tests. All of those products do not depend on just built SwiftPM
(WasmKit is built using host tools), so it is safe to build them earlier.

Author: kateinoigakukun

utils/swift_build_support/swift_build_support/build_script_invocation.py

@@ -648,6 +648,21 @@ def compute_product_pipelines(self):
         # Begin the post build-script-impl build phase.
         builder.begin_pipeline()
 
+        builder.add_product(products.WASILibc,
+                            is_enabled=self.args.build_wasmstdlib)
+        builder.add_product(products.WasmLLVMRuntimeLibs,
+                            is_enabled=self.args.build_wasmstdlib)
+        builder.add_product(products.WasmThreadsLLVMRuntimeLibs,
+                            is_enabled=self.args.build_wasmstdlib)
+        builder.add_product(products.WasmKit,
+                            is_enabled=self.args.build_wasmkit)
+        builder.add_product(products.WasmStdlib,
+                            is_enabled=self.args.build_wasmstdlib)
+        builder.add_product(products.WasmThreadsStdlib,
+                            is_enabled=self.args.build_wasmstdlib)
+        builder.add_product(products.WasmSwiftSDK,
+                            is_enabled=self.args.build_wasmstdlib)
+
         builder.add_product(products.SwiftPM,
                             is_enabled=self.args.build_swiftpm)
         builder.add_product(products.SwiftSyntax,
@@ -674,20 +689,6 @@ def compute_product_pipelines(self):
                             is_enabled=self.args.install_swiftdocc)
         builder.add_product(products.MinimalStdlib,
                             is_enabled=self.args.build_minimalstdlib)
-        builder.add_product(products.WASILibc,
-                            is_enabled=self.args.build_wasmstdlib)
-        builder.add_product(products.WasmLLVMRuntimeLibs,
-                            is_enabled=self.args.build_wasmstdlib)
-        builder.add_product(products.WasmThreadsLLVMRuntimeLibs,
-                            is_enabled=self.args.build_wasmstdlib)
-        builder.add_product(products.WasmKit,
-                            is_enabled=self.args.build_wasmkit)
-        builder.add_product(products.WasmStdlib,
-                            is_enabled=self.args.build_wasmstdlib)
-        builder.add_product(products.WasmThreadsStdlib,
-                            is_enabled=self.args.build_wasmstdlib)
-        builder.add_product(products.WasmSwiftSDK,
-                            is_enabled=self.args.build_wasmstdlib)
 
         # Keep SwiftDriver at last.
         # swift-driver's integration with the build scripts is not fully