bug: no error for syntactically wrong subroutine

[hkimura-intersys]

There should be an error if someone tries to declare public variables with [x,y] in a subroutine that is not a block.
For example:

is not valid, as shown below:

you must add brackets:

and then it compiles as expected.

[isc-klu]

Keith and I found that the syntax error is incorrectly suppressed when there is trailing whitespace between Public and the newline character.

Error correctly reported when no whitespace follows Public:

test()  [x,y]   Public
 set x = 2

Error correctly reported when non-whitespace follows Public:

test()  [x,y]   Public /*foo*/
 set x = 2

Error incorrectly missing when only whitespace follows Public:

test()  [x,y]   Public   
 set x = 2

This suggests the parser may be treating trailing whitespace as if braces were present.

[isc-klu]

The problem also applies to Private

[isc-klu]

Actually, the presence of Public/Private keyword is insignificant. For example, an error is also incorrectly missing for the following program (there are some whitespaces after ]):

ROUTINE Test
test()  [x,y] 
 set x = 2