Expose SIMD.Float32x4 type to Javascript.

src/arm64/code-stubs-arm64.cc

Index: src/arm64/code-stubs-arm64.cc
diff --git a/src/arm64/code-stubs-arm64.cc b/src/arm64/code-stubs-arm64.cc
index 0310cfe913dde7d666e959e250fed00d339f615d..ed0576848e4e8c86a3a879bf0b6ac3b431b1cbf8 100644
--- a/src/arm64/code-stubs-arm64.cc
+++ b/src/arm64/code-stubs-arm64.cc
@@ -227,6 +227,9 @@ static void EmitIdenticalObjectComparison(MacroAssembler* masm, Register left,
     // Call runtime on identical symbols since we need to throw a TypeError.
     __ Cmp(right_type, SYMBOL_TYPE);
     __ B(eq, slow);
+    // Call runtime on identical SIMD values since we must throw a TypeError.
+    __ Cmp(right_type, FLOAT32X4_TYPE);
+    __ B(eq, slow);
     if (is_strong(strength)) {
       // Call the runtime on anything that is converted in the semantics, since
       // we need to throw a TypeError. Smis have already been ruled out.
@@ -246,6 +249,9 @@ static void EmitIdenticalObjectComparison(MacroAssembler* masm, Register left,
     // Call runtime on identical symbols since we need to throw a TypeError.
     __ Cmp(right_type, SYMBOL_TYPE);
     __ B(eq, slow);
+    // Call runtime on identical SIMD values since we must throw a TypeError.
+    __ Cmp(right_type, FLOAT32X4_TYPE);
+    __ B(eq, slow);
     if (is_strong(strength)) {
       // Call the runtime on anything that is converted in the semantics,
       // since we need to throw a TypeError. Smis and heap numbers have