Adjust wording for ERR_ExpressionVariableInConstructorOrFieldInitializer error

[AlekseyTs]

+  <data name="ERR_ExpressionVariableInConstructorOrFieldInitializer" xml:space="preserve">
+    <value>Out variable or pattern variable declarations are not allowed within constructor/field/auto-implemented property initializers.</value>

From @cston:
Consider separating cases with comma for consistency with other errors. And remove auto-implemented if not necessary. Perhaps: ... not allowed within constructors, field initializers, or property initializers.

From @gafter:
Also, I believe the first "or" should be "and" (they are both forbidden), so I suggest

Out variable and pattern variable declarations are not allowed within constructor initializers, field initializers, or property initializers.

This is long-winded enough that you could consider specializing it.