STIL Parser update to make vector inline comment a child of vector node

[rlaj]

Comment node of vector inline comment (defined as inline comment between end of vector and a newline) to be a child node of the vector node. Allows better comment traceability for downstream AST processors.

EXAMPLE STIL:

V { Jtag=1110x; }   // vecLine:1, testCycle:1
// SELECT_DR -> SELECT_IR
V { Jtag=1p10x; }   // vecLine:2, testCycle:2
// SELECT_IR -> CAPTURE_IR

PREVIOUS:

    Vector
        CyclizedData
            SigRefExpr
                String("Jtag")
            Data("1110x")
    Comment("// vecLine:1, testCycle:1")
    Comment("// SELECT_DR -> SELECT_IR")
    Vector
        CyclizedData
            SigRefExpr
                String("Jtag")
            Data("1p10x")
    Comment("// vecLine:2, testCycle:2")
    Comment("// SELECT_IR -> CAPTURE_IR")

UPDATED:

    Vector
        CyclizedData
            SigRefExpr
                String("Jtag")
            Data("1110x")
        Comment("// vecLine:1, testCycle:1")
    Comment("// SELECT_DR -> SELECT_IR")
    Vector
        CyclizedData
            SigRefExpr
                String("Jtag")
            Data("1p10x")
        Comment("// vecLine:2, testCycle:2")
    Comment("// SELECT_IR -> CAPTURE_IR")

[coreyeng]

We haven't been using STIL here yet, but I don't see any issue.