[Wasm] Component Model: Replace hard-coded interface name

Use the informal and unofficial standard used by bytecodealliance tools
for now, see  WebAssembly/component-model#422
and WebAssembly/component-model#378 for better
future versions.

Author: J-MR-T

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/lower/WasmComponentModelLowering.kt

@@ -253,9 +253,9 @@ class WasmComponentModelLowering(val context: WasmBackendContext) : FileLowering
                     UNDEFINED_OFFSET, UNDEFINED_OFFSET,
                     context.irBuiltIns.stringType,
                     // TODO more robust version of this
-//                    kebabCaseFromLowerCamelCase(functionBlueprint.name.asString())
+                    wasmExportNameForWitIfaceFunction(witIfaceName, functionBlueprint.name.asString())
                     // TODO obviously do this correctl
-                    "wasi:cli/run@0.2.9#run"
+//                    "wasi:cli/run@0.2.9#run"
 //                    "cm32p2|_ex_wasi:cli/run@0.2.9|run"
                 )
             }
@@ -291,6 +291,12 @@ class WasmComponentModelLowering(val context: WasmBackendContext) : FileLowering
         return topLevelFunction
     }
 
+    // TODO this is just a bytecodealliance "convention" that "just works" with the existing tooling right now
+    //      see https://github.com/WebAssembly/component-model/issues/422 / https://github.com/WebAssembly/component-model/pull/378
+    private fun wasmExportNameForWitIfaceFunction(witIfaceName: String, functionName: String): String {
+        return "$witIfaceName#$functionName"
+    }
+
     // TODO probably find a more robust alternative, maybe pass the fn names from wit-bindgen to here somehow
     private fun kebabCaseFromLowerCamelCase(lowerCamelCase: String): String {
         assert(lowerCamelCase[0].isLowerCase()) { "using this function wrong, probably shouldn't be using it at all" }