Fix Semi-colon on inline methods after property declaration disappears

[kunli2]

fixes #560

An code example:

class Test {
    var n: Int = 0 /*C1*/ ;   protected set
}

1. var n: Int = 0 /*C1*/ ; protected set is a K.Property.

2. protected set is a setter accessor in the K.Property, it can be in a new line and then no semi-colon is required, but it can be in the same line and then a semi-colon is required as a delimiter.
   For the latter case with a semi-colon inside a K.Property, However, there is not a space room for /*C1*/ in K.Property.

This PR proposed to change variable declarations in K.Property from type J.VariableDeclarations to JRightPadded<J.VariableDeclarations>, plus SemiColon marker, then this case can be handled.