[RyuJIT] Intrinsify Object.MemberwiseClone()

[EgorBo]

Addresses #45311 (comment)

Total bytes of delta: -2419 (-0.00% of base)
    diff is an improvement.

Top file improvements (bytes):
       -1754 : System.Private.Xml.dasm (-0.05% of base)
        -434 : System.Private.CoreLib.dasm (-0.01% of base)
        -131 : Microsoft.Diagnostics.Tracing.TraceEvent.dasm (-0.00% of base)
         -69 : System.Drawing.Common.dasm (-0.02% of base)
         -31 : Microsoft.CodeAnalysis.dasm (-0.00% of base)

5 total files with Code Size differences (5 improved, 0 regressed), 264 unchanged.

Top method improvements (bytes):
        -190 (-6.38% of base) : System.Private.Xml.dasm - Compiler:CompileElement(XmlSchemaElement):this
        -190 (-6.83% of base) : System.Private.Xml.dasm - SchemaCollectionCompiler:CompileElement(XmlSchemaElement):this
        -159 (-12.42% of base) : System.Private.Xml.dasm - XmlSchemaComplexType:Clone(XmlSchema):XmlSchemaObject:this
        -155 (-37.17% of base) : System.Private.Xml.dasm - XmlSchemaElement:Clone(XmlSchema):XmlSchemaObject:this
        -124 (-55.61% of base) : System.Private.Xml.dasm - XmlSchemaAttribute:Clone():XmlSchemaObject:this
         -73 (-29.92% of base) : System.Private.Xml.dasm - XmlSchemaSimpleTypeUnion:Clone():XmlSchemaObject:this
         -62 (-53.45% of base) : System.Private.Xml.dasm - XmlSchemaSimpleTypeList:Clone():XmlSchemaObject:this
         -62 (-53.45% of base) : System.Private.Xml.dasm - XmlSchemaSimpleTypeRestriction:Clone():XmlSchemaObject:this
         -42 (-70.00% of base) : System.Private.CoreLib.dasm - Calendar:Clone():Object:this
         -42 (-70.00% of base) : System.Private.CoreLib.dasm - TextInfo:Clone():Object:this
         -39 (-45.35% of base) : System.Private.Xml.dasm - XsltOutput:CreateDerivedOutput(int):XsltOutput:this
         -38 (-67.86% of base) : System.Drawing.Common.dasm - PrinterSettings:Clone():Object:this
         -38 (-27.94% of base) : System.Private.CoreLib.dasm - Calendar:ReadOnly(Calendar):Calendar
         -38 (-64.41% of base) : System.Private.CoreLib.dasm - NumberFormatInfo:Clone():Object:this
         -38 (-26.76% of base) : System.Private.CoreLib.dasm - NumberFormatInfo:ReadOnly(NumberFormatInfo):NumberFormatInfo
         -38 (-27.94% of base) : System.Private.CoreLib.dasm - TextInfo:ReadOnly(TextInfo):TextInfo
         -38 (-67.86% of base) : System.Private.CoreLib.dasm - Encoding:Clone():Object:this
         -36 (-70.59% of base) : Microsoft.Diagnostics.Tracing.TraceEvent.dasm - CommandOptions:Clone():CommandOptions:this
         -36 (-70.59% of base) : System.Private.CoreLib.dasm - MarshalByRefObject:MemberwiseClone(bool):MarshalByRefObject:this
         -36 (-70.59% of base) : System.Private.Xml.dasm - XmlQualifiedName:Clone():XmlQualifiedName:this

Top method improvements (percentages):
         -36 (-70.59% of base) : Microsoft.Diagnostics.Tracing.TraceEvent.dasm - CommandOptions:Clone():CommandOptions:this
         -36 (-70.59% of base) : System.Private.CoreLib.dasm - MarshalByRefObject:MemberwiseClone(bool):MarshalByRefObject:this
         -36 (-70.59% of base) : System.Private.Xml.dasm - XmlQualifiedName:Clone():XmlQualifiedName:this
         -36 (-70.59% of base) : System.Private.Xml.dasm - SchemaAttDef:Clone():SchemaAttDef:this
         -36 (-70.59% of base) : System.Private.Xml.dasm - SchemaElementDecl:Clone():SchemaElementDecl:this
         -36 (-70.59% of base) : System.Private.Xml.dasm - XmlSchemaObject:Clone():XmlSchemaObject:this
         -36 (-70.59% of base) : System.Private.Xml.dasm - QilNode:ShallowClone(QilFactory):QilNode:this
         -42 (-70.00% of base) : System.Private.CoreLib.dasm - Calendar:Clone():Object:this
         -42 (-70.00% of base) : System.Private.CoreLib.dasm - TextInfo:Clone():Object:this
         -38 (-67.86% of base) : System.Drawing.Common.dasm - PrinterSettings:Clone():Object:this
         -38 (-67.86% of base) : System.Private.CoreLib.dasm - Encoding:Clone():Object:this
         -38 (-64.41% of base) : System.Private.CoreLib.dasm - NumberFormatInfo:Clone():Object:this
        -124 (-55.61% of base) : System.Private.Xml.dasm - XmlSchemaAttribute:Clone():XmlSchemaObject:this
         -22 (-55.00% of base) : System.Private.Xml.dasm - XmlReaderSettings:Clone():XmlReaderSettings:this
         -62 (-53.45% of base) : System.Private.Xml.dasm - XmlSchemaSimpleTypeList:Clone():XmlSchemaObject:this
         -62 (-53.45% of base) : System.Private.Xml.dasm - XmlSchemaSimpleTypeRestriction:Clone():XmlSchemaObject:this
         -39 (-45.35% of base) : System.Private.Xml.dasm - XsltOutput:CreateDerivedOutput(int):XsltOutput:this
         -31 (-37.80% of base) : Microsoft.CodeAnalysis.dasm - ILBuilder:GetSnapshot():ILBuilder:this
        -155 (-37.17% of base) : System.Private.Xml.dasm - XmlSchemaElement:Clone(XmlSchema):XmlSchemaObject:this
         -31 (-36.90% of base) : System.Private.Xml.dasm - QilList:ShallowClone(QilFactory):QilNode:this

/cc @AndyAyersMS

[AndyAyersMS]

Thanks!