Update testsuite and corresponding update to comment parser (#2416)

The main change here is because `comments.wast` was updated to include
a "quoted" module at the top level.

Previously quoted modules had only been used as part of invalid or
malformed assertion expressions.

Author: sbc100

include/wabt/opcode.def

@@ -520,8 +520,8 @@ WABT_OPCODE(V128, V128, V128, ___,  0,  0xfd, 0x10e, F32X4RelaxedMax, "f32x4.rel
 WABT_OPCODE(V128, V128, V128, ___,  0,  0xfd, 0x10f, F64X2RelaxedMin, "f64x2.relaxed_min", "")
 WABT_OPCODE(V128, V128, V128, ___,  0,  0xfd, 0x110, F64X2RelaxedMax, "f64x2.relaxed_max", "")
 WABT_OPCODE(V128, V128, V128, ___,  0,  0xfd, 0x111, I16X8RelaxedQ15mulrS, "i16x8.relaxed_q15mulr_s", "")
-WABT_OPCODE(V128, V128, V128, ___,  0,  0xfd, 0x112, I16X8DotI8X16I7X16S, "i16x8.dot_i8x16_i7x16_s", "")
-WABT_OPCODE(V128, V128, V128, V128, 0,  0xfd, 0x113, I32X4DotI8X16I7X16AddS, "i32x4.dot_i8x16_i7x16_add_s", "")
+WABT_OPCODE(V128, V128, V128, ___,  0,  0xfd, 0x112, I16X8DotI8X16I7X16S, "i16x8.relaxed_dot_i8x16_i7x16_s", "")
+WABT_OPCODE(V128, V128, V128, V128, 0,  0xfd, 0x113, I32X4DotI8X16I7X16AddS, "i32x4.relaxed_dot_i8x16_i7x16_add_s", "")
 
 /* Thread opcodes (--enable-threads) */
 WABT_OPCODE(I32,  I32,  I32,  ___,  4,  0xfe, 0x00, MemoryAtomicNotify, "memory.atomic.notify", "")

src/interp/interp.cc

@@ -2469,8 +2469,8 @@ RunResult Thread::DoSimdDot() {
   S result;
   for (u8 i = 0; i < S::lanes; ++i) {
     u8 laneidx = i * 2;
-    SL lo = SL(lhs[laneidx]) * SL(rhs[laneidx]);
-    SL hi = SL(lhs[laneidx + 1]) * SL(rhs[laneidx + 1]);
+    SL lo = SL(lhs[laneidx] * rhs[laneidx]);
+    SL hi = SL(lhs[laneidx + 1] * rhs[laneidx + 1]);
     result[i] = Add(lo, hi);
   }
   Push(result);
@@ -2486,8 +2486,8 @@ RunResult Thread::DoSimdDotAdd() {
   S result;
   for (u8 i = 0; i < S::lanes; ++i) {
     u8 laneidx = i * 2;
-    SL lo = SL(lhs[laneidx]) * SL(rhs[laneidx]);
-    SL hi = SL(lhs[laneidx + 1]) * SL(rhs[laneidx + 1]);
+    SL lo = SL(lhs[laneidx] * rhs[laneidx]);
+    SL hi = SL(lhs[laneidx + 1] * rhs[laneidx + 1]);
     result[i] = Add(lo, hi);
     result[i] = Add(result[i], acc[i]);
   }

src/lexer-keywords.txt

@@ -193,7 +193,7 @@ i16x8.add, TokenType::Binary, Opcode::I16X8Add
 i16x8.all_true, TokenType::Unary, Opcode::I16X8AllTrue
 i16x8.avgr_u, TokenType::Binary, Opcode::I16X8AvgrU
 i16x8.bitmask, TokenType::Unary, Opcode::I16X8Bitmask
-i16x8.dot_i8x16_i7x16_s, TokenType::Binary, Opcode::I16X8DotI8X16I7X16S
+i16x8.relaxed_dot_i8x16_i7x16_s, TokenType::Binary, Opcode::I16X8DotI8X16I7X16S
 i16x8.eq, TokenType::Compare, Opcode::I16X8Eq
 i16x8.extract_lane_s, TokenType::SimdLaneOp, Opcode::I16X8ExtractLaneS
 i16x8.extract_lane_u, TokenType::SimdLaneOp, Opcode::I16X8ExtractLaneU
@@ -319,7 +319,7 @@ i32x4.abs, TokenType::Unary, Opcode::I32X4Abs
 i32x4.add, TokenType::Binary, Opcode::I32X4Add
 i32x4.all_true, TokenType::Unary, Opcode::I32X4AllTrue
 i32x4.bitmask, TokenType::Unary, Opcode::I32X4Bitmask
-i32x4.dot_i8x16_i7x16_add_s, TokenType::Ternary, Opcode::I32X4DotI8X16I7X16AddS
+i32x4.relaxed_dot_i8x16_i7x16_add_s, TokenType::Ternary, Opcode::I32X4DotI8X16I7X16AddS
 i32x4.eq, TokenType::Compare, Opcode::I32X4Eq
 i32x4.extract_lane, TokenType::SimdLaneOp, Opcode::I32X4ExtractLane
 i32x4.ge_s, TokenType::Compare, Opcode::I32X4GeS