Update description of InvalidProgramException (#8178)

Author: jkotas

xml/System/InvalidProgramException.xml

@@ -56,7 +56,7 @@
     </Attribute>
   </Attributes>
   <Docs>
-    <summary>The exception that is thrown when a program contains invalid Microsoft intermediate language (MSIL) or metadata. Generally this indicates a bug in the compiler that generated the program.</summary>
+    <summary>The exception that is thrown when a program contains invalid Microsoft intermediate language (MSIL) or metadata. Generally this indicates a bug in the compiler that generated the program. This exception is also thrown when internal runtime implementation limits have been exceeded by the program.</summary>
     <remarks>
       <format type="text/markdown"><![CDATA[