fix: tolerate missing dot_fs

[ap891843]

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Below code would give diagnostics for the missing DOT, but would still do the parsing of code. i.e variables hover and other LSP feature continue to work.

       IDENTIFICATION DIVISION
       PROGRAM-ID. testabd.
       ENVIRONMENT DIVISION
       CONFIGURATION SECTION
       SPECIAL-NAMES.
       SOURCE-COMPUTER    IBM-PC                                              
       OBJECT-COMPUTER    .IBM-PC CHARACTER SET.
       INPUT-OUTPUT SECTION
       FILE-CONTROL
       DATA DIVISION
        FILE SECTION
        WORKING-STORAGE SECTION
        01 test.
           05 testa pic x
        LINKAGE SECTION
       PROCEDURE DIVISION
        MAIN-PROCESSING SECTION.
         MAINLINE-PARAGRAPH.
             display TESTA
             STOP RUN.
       ABC
           display "under abc".

below code would throw error but should recover from those errors. i.e. we should be able to do variable navigations etc

       Identification Division. 
       Program-id.    Programa.
       Data Division.
       Working-Storage Section.
       01  PARENT1.
           03  CHILD1         PIC 9   VALUE IS '0'.
           03  CHILD2        PIC 9   VALUE IS '1'.
           03  CHILD3         PIC 9   VALUE IS '2'.
       Procedure Division
       000-Main-Logic
           DISPLAcxcdsdfdfd sdsd sdfds sds "hello".
           DISPLAY CHILD1 OF PARENT1. 
           ACCEPT CHILD2 END-ACCEPT.
       End program Programa.   

       IDENTIFICATION DIVISION
       PROGRAM-ID. testabd.
       ENVIRONMENT DIVISION
       CONFIGURATION SECTION
       SPECIAL-NAMES.
       SOURCE-COMPUTER    IBM-PC                                              
       OBJECT-COMPUTER    .IBM-PC CHARACTER SET.
       INPUT-OUTPUT SECTION
       FILE-CONTROL
       DATA DIVISION
        FILE SECTION
        WORKING-STORAGE SECTION
        01 test.
           05 testa pic x
        LINKAGE SECTION
       PROCEDURE DIVISION
        MAIN-PROCESSING SECTION.
         MAINLINE-PARAGRAPH.
             display TESTA
             STOP RUN.
       ABC
           display "under abc".

Checklist:

• Each of my commits contains one meaningful change
• I have performed rebase of my branch on top of the development
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have checked my code and corrected any misspellings

[zeibura]

What does "assumed" mean? That it was missing in the code but the parser added it anyway?

[ap891843]

Yes. The parser assumed it, went ahead to parse the code ahead, instead of just failing at that point.
IBM cobol compiler gives below message
"IGYPS2145-E A period was required. A period was assumed before "PERFORM".

[zeibura]

Ah so if it's a copy of the compiler message that's fine