[wasm-simd][fuzzer] Fuzz extadd pairwise instructions

Bug: v8:11086
Change-Id: I3413a6cd3e9ea6078ce014a0596c51b092e44cfe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2707778Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72980}

test/fuzzer/wasm-compile.cc

@@ -1343,6 +1343,8 @@ void WasmGenerator::Generate<kS128>(DataRange* data) {
       &WasmGenerator::op_with_prefix<kExprI16x8ExtMulHighI8x16S, kS128, kS128>,
       &WasmGenerator::op_with_prefix<kExprI16x8ExtMulHighI8x16U, kS128, kS128>,
       &WasmGenerator::op_with_prefix<kExprI16x8Q15MulRSatS, kS128, kS128>,
+      &WasmGenerator::op_with_prefix<kExprI16x8ExtAddPairwiseI8x16S, kS128>,
+      &WasmGenerator::op_with_prefix<kExprI16x8ExtAddPairwiseI8x16U, kS128>,
 
       &WasmGenerator::op_with_prefix<kExprI32x4Splat, kI32>,
       &WasmGenerator::op_with_prefix<kExprI32x4Eq, kS128, kS128>,
@@ -1372,6 +1374,8 @@ void WasmGenerator::Generate<kS128>(DataRange* data) {
       &WasmGenerator::op_with_prefix<kExprI32x4ExtMulLowI16x8U, kS128, kS128>,
       &WasmGenerator::op_with_prefix<kExprI32x4ExtMulHighI16x8S, kS128, kS128>,
       &WasmGenerator::op_with_prefix<kExprI32x4ExtMulHighI16x8U, kS128, kS128>,
+      &WasmGenerator::op_with_prefix<kExprI32x4ExtAddPairwiseI16x8S, kS128>,
+      &WasmGenerator::op_with_prefix<kExprI32x4ExtAddPairwiseI16x8U, kS128>,
 
       &WasmGenerator::op_with_prefix<kExprI64x2Splat, kI64>,
       &WasmGenerator::op_with_prefix<kExprI64x2Eq, kS128, kS128>,