adding new line and inline comments

Author: RanVaknin

codegen/smithy-aws-go-codegen/src/main/java/software/amazon/smithy/aws/go/codegen/JsonShapeDeserVisitor.java

@@ -193,15 +193,18 @@ protected void deserializeStructure(GenerationContext context, StructureShape sh
                     String memberName = symbolProvider.toMemberName(member);
                     String serializedMemberName = getSerializedMemberName(member);
 
+                    // The 'message' field in JSON protocol errors is known to not always match its over-the-wire casing with what is modeled.
+                    // See https://github.com/aws/aws-sdk-go-v2/issues/2859
                     boolean isErrorStructure = shape.hasTrait(ErrorTrait.class);
 
-                    if(isErrorStructure && memberName.equals("Message")){
+                    if(isErrorStructure && memberName.equalsIgnoreCase("Message")){
                         writer.write("case \"message\", \"Message\":");
                     } else {
                         writer.write("case $S:",serializedMemberName);
                     }
                     String dest = "sv." + memberName;
                     context.getModel().expectShape(member.getTarget()).accept(getMemberDeserVisitor(member, dest));
+                    writer.write("");
                 }
 
                 writer.openBlock("default:", "", () -> {
@@ -210,7 +213,6 @@ protected void deserializeStructure(GenerationContext context, StructureShape sh
             });
         });
 
-
         writer.write("*v = sv");
         writer.write("return nil");
     }