Fix compiler warnings in new wasm modules

Also don't output v8ExecutablePath in js.tests on each project
configuration.

wasm/wasm.ir/src/org/jetbrains/kotlin/wasm/ir/WasmExpressionBuilder.kt

@@ -39,16 +39,19 @@ abstract class WasmExpressionBuilder {
         buildInstr(WasmOp.UNREACHABLE)
     }
 
+    @Suppress("UNUSED_PARAMETER")
     fun buildBlock(label: String?, resultType: WasmType? = null) {
         numberOfNestedBlocks++
         buildInstr(WasmOp.BLOCK, WasmImmediate.BlockType.Value(resultType))
     }
 
+    @Suppress("UNUSED_PARAMETER")
     fun buildLoop(label: String?, resultType: WasmType? = null) {
         numberOfNestedBlocks++
         buildInstr(WasmOp.LOOP, WasmImmediate.BlockType.Value(resultType))
     }
 
+    @Suppress("UNUSED_PARAMETER")
     fun buildIf(label: String?, resultType: WasmType? = null) {
         numberOfNestedBlocks++
         buildInstr(WasmOp.IF, WasmImmediate.BlockType.Value(resultType))

wasm/wasm.ir/src/org/jetbrains/kotlin/wasm/ir/convertors/WasmIrToBinary.kt

@@ -460,6 +460,7 @@ abstract class ByteWriter {
 
     private fun writeUnsignedLeb128(v: UInt) {
         // Taken from Android source, Apache licensed
+        @Suppress("NAME_SHADOWING")
         var v = v
         var remaining = v shr 7
         while (remaining != 0u) {
@@ -474,6 +475,7 @@ abstract class ByteWriter {
 
     private fun writeSignedLeb128(v: Long) {
         // Taken from Android source, Apache licensed
+        @Suppress("NAME_SHADOWING")
         var v = v
         var remaining = v shr 7
         var hasMore = true
@@ -508,4 +510,4 @@ abstract class ByteWriter {
 
         override fun createTemp() = OutputStream(ByteArrayOutputStream())
     }
-}
+}