Fix constructing void array zero nodes

src/compiler/translator/tree_util/IntermNode_util.cpp

@@ -86,18 +86,6 @@ TIntermTyped *CreateZeroNode(const TType &type)
         return node;
     }
 
-    if (type.getBasicType() == EbtVoid)
-    {
-        // Void array. This happens only on error condition, similarly to the case above. We don't
-        // have a constructor operator for void, so this needs special handling. We'll end up with a
-        // value without the array type, but that should not be a problem.
-        while (constType.isArray())
-        {
-            constType.toArrayElementType();
-        }
-        return CreateZeroNode(constType);
-    }
-
     TIntermSequence *arguments = new TIntermSequence();
 
     if (type.isArray())

src/tests/compiler_tests/ShaderValidation_test.cpp

@@ -6034,3 +6034,23 @@ TEST_F(FragmentShaderValidationTest, ValueFromConstantArrayAsArraySize)
         FAIL() << "Shader compilation failed, expecting success:\n" << mInfoLog;
     }
 }
+
+// Test that an invalid struct with void fields doesn't crash or assert when used in a comma
+// operator. This is a regression test.
+TEST_F(FragmentShaderValidationTest, InvalidStructWithVoidFieldsInComma)
+{
+    // The struct needed the two fields for the bug to repro.
+    const std::string &shaderString =
+        R"(#version 300 es
+precision highp float;
+
+struct T { void a[8], c; };
+
+void main() {
+    0.0, T();
+})";
+    if (compile(shaderString))
+    {
+        FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog;
+    }
+}
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